ECO,Count,Name,PGN
A40,"2,160,508",Queen Pawn Opening,1.d4
B00,"1,398,214",King's Pawn,1.e4
C20,"1,050,507",King Pawn Game,1.e4 e5
B20,"955,201",Sicilian Defense,1.e4 c5
D00,"661,940",Queen Pawn Game,1.d4 d5
A45,"651,186",Indian Game,1.d4 Nf6
C44,"571,079",King's Knight Opening: Normal Variation,1.e4 e5 2.Nf3 Nc6
C40,"532,194",King's Knight Opening,1.e4 e5 2.Nf3
B50,"517,282",Sicilian Defense: Modern Variations,1.e4 c5 2.Nf3 d6
A50,"465,572",Indian Game: Normal Variation,1.d4 Nf6 2.c4
B54,"379,048",Sicilian Defense: Modern Variations,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4
B56,"312,088",Sicilian Defense: Modern Variations,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3
C00,"271,898",French Defense,1.e4 e6
E00,"222,276",Indian Game: East Indian Defense,1.d4 Nf6 2.c4 e6
A04,"216,871",Zukertort Opening: Symmetrical Variation,1.Nf3 Nf6
E10,"192,139",Indian Game: Anti-Nimzo-Indian,1.d4 Nf6 2.c4 e6 3.Nf3
B90,"178,989",Sicilian Defense: Najdorf Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6
E61,"171,598",Indian Game: West Indian Defense,1.d4 Nf6 2.c4 g6
C00,"163,098",French Defense: Normal Variation,1.e4 e6 2.d4
A46,"163,032",Indian Game: Knights Variation,1.d4 Nf6 2.Nf3
C10,"156,006",French Defense: Normal Variation,1.e4 e6 2.d4 d5 3.Nc3
C60,"154,597",Ruy Lopez,1.e4 e5 2.Nf3 Nc6 3.Bb5
D30,"154,172",Queen's Gambit Declined,1.d4 d5 2.c4 e6
B57,"150,380","Sicilian Defense: Modern Variations, Main Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6
B32,"146,515","Sicilian Defense: Old Sicilian, Open",1.e4 c5 2.Nf3 Nc6 3.d4
E61,"145,564",King's Indian Defense:  3.Nc3,1.d4 Nf6 2.c4 g6 3.Nc3
D10,"144,044",Slav Defense,1.d4 d5 2.c4 c6
E77,"142,784",King's Indian Defense: Six Pawns Attack,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6
E70,"138,635",King's Indian Defense: Normal Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4
B40,"133,708",Sicilian Defense: French Variation,1.e4 c5 2.Nf3 e6
E91,"133,031",King's Indian Defense: Orthodox Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2
D11,"129,253",Slav Defense: Modern Line,1.d4 d5 2.c4 c6 3.Nf3
B56,"120,572",Sicilian Defense: Classical Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6
D02,"114,155",Queen Pawn Game: Zukertort Variation,1.d4 d5 2.Nf3
A10,"112,630",English Opening,1.c4
C68,"104,191",Ruy Lopez: Columbus Variation,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4
A49,"103,024",Indian Game: Pseudo-King's Indian Variation,1.d4 Nf6 2.Nf3 g6
B40,"98,070","Sicilian Defense: French Variation, Open",1.e4 c5 2.Nf3 e6 3.d4 cxd4
A15,"97,586","English Opening: Anglo-Indian Defense, King's Knight Variation",1.c4 Nf6 2.Nf3
E90,"93,590","King's Indian Defense: Normal Variation, Rare Defenses",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3
D37,"89,945",Queen's Gambit Declined: Three Knights Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3
E12,"88,816",Queen's Indian Defense,1.d4 Nf6 2.c4 e6 3.Nf3 b6
E20,"88,633",Nimzo-Indian Defense,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
D15,"86,889",Slav Defense: Three Knights Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3
B12,"80,423",Caro-Kann Defense,1.e4 c6 2.d4
D43,"79,676",Semi-Slav Defense,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6
C78,"78,275",Ruy Lopez: Morphy Defense,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O
B12,"77,300",Caro-Kann Defense,1.e4 c6 2.d4 d5
B30,"74,534",Sicilian Defense: Old Sicilian,1.e4 c5 2.Nf3 Nc6
B07,"71,740",Pirc Defense,1.e4 d6 2.d4 Nf6 3.Nc3
C88,"71,039",Ruy Lopez: Closed,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
C92,"70,984",Ruy Lopez: Closed Variations,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3
B15,"70,036",Caro-Kann Defense: Main Line,1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4
D45,"69,954",Semi-Slav Defense: Main Lines,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3
B45,"69,716","Sicilian Defense: Paulsen Variation, Normal Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3
E60,"68,825","King's Indian Defense: Normal Variation, King's Knight Variation",1.d4 Nf6 2.c4 g6 3.Nf3
C50,"67,228",Italian Game,1.e4 e5 2.Nf3 Nc6 3.Bc4
D80,"66,937",Gruenfeld Defense,1.d4 Nf6 2.c4 g6 3.Nc3 d5
D02,"64,906",Queen Pawn Game: Symmetrical Variation,1.d4 d5 2.Nf3 Nf6
D45,"63,364",Semi-Slav Defense: Normal Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7
E15,"63,203",Queen's Indian Defense: Fianchetto Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3
E40,"56,887",Nimzo-Indian Defense: Normal Line,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3
D31,"56,565",Queen's Gambit Declined: Queen's Knight Variation,1.d4 d5 2.c4 e6 3.Nc3
D35,"56,079",Queen's Gambit Declined: Normal Defense,1.d4 d5 2.c4 e6 3.Nc3 Nf6
A56,"55,125",Benoni Defense: Modern Variation,1.d4 Nf6 2.c4 c5
C84,"55,063",Ruy Lopez: Closed Variations,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7
B23,"54,148",Sicilian Defense: Closed Variation,1.e4 c5 2.Nc3
B44,"54,064",Sicilian Defense: Paulsen Variation,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6
C03,"53,108",French Defense: Tarrasch Variation,1.e4 e6 2.d4 d5 3.Nd2
B33,"53,079","Sicilian Defense: Old Sicilian, Normal",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6
B07,"51,766",Pirc Defense,1.e4 d6 2.d4 Nf6
E92,"51,091",King's Indian Defense: Orthodox Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5
B10,"49,504",Caro-Kann Defense,1.e4 c6
E80,"48,821",King's Indian Defense: Saemisch Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3
B01,"47,381",Scandinavian Defense,1.e4 d5
B22,"46,692",Sicilian Defense: Alapin Variation,1.e4 c5 2.c3
C44,"45,580",Scotch Game,1.e4 e5 2.Nf3 Nc6 3.d4
D11,"45,361",Slav Defense: Quiet Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3
A20,"45,299",English Opening: King's English Variation,1.c4 e5
B07,"44,536",Pirc Defense,1.e4 d6 2.d4 Nf6 3.Nc3 g6
B06,"44,448",Modern Defense: Standard Line,1.e4 g6 2.d4 Bg7 3.Nc3
E97,"43,921","King's Indian Defense: Orthodox Variation, Aronin-Taimanov Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6
A57,"43,672",Benko Gambit,1.d4 Nf6 2.c4 c5 3.d5 b5
C11,"42,748",French Defense: Classical Variation,1.e4 e6 2.d4 d5 3.Nc3 Nf6
E32,"42,386",Nimzo-Indian Defense: Classical Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2
B43,"41,754","Sicilian Defense: Kan Variation, Knight Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3
B41,"41,700",Sicilian Defense: Kan Variation,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6
B70,"41,570",Sicilian Defense: Dragon Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6
C42,"41,348",Russian Game,1.e4 e5 2.Nf3 Nf6
C15,"40,612",French Defense: Winawer Variation,1.e4 e6 2.d4 d5 3.Nc3 Bb4
D45,"40,125",Semi-Slav Defense: Stoltz Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Qc2
B80,"39,096",Sicilian Defense: Scheveningen Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6
D16,"38,594",Slav Defense: Alapin Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4
A15,"37,671","English Opening: Anglo-Indian Defense, King's Indian Formation",1.c4 Nf6 2.Nf3 g6
B15,"37,419","Caro-Kann Defense: Standard, Unorthodox Replies",1.e4 c6 2.d4 d5 3.Nc3
C02,"36,557",French Defense: Advance Variation,1.e4 e6 2.d4 d5 3.e5
A06,"36,352",Zukertort Opening: Queen Pawn Defense,1.Nf3 d5
B95,"36,228",Sicilian Defense: Najdorf Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6
A15,"35,926","English Opening: Anglo-Indian Defense, Mikenas-Carls Variation",1.c4 Nf6
B47,"35,830","Sicilian Defense: Paulsen Variation, Bastrikov Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7
C45,"34,966",Scotch Game,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4
B62,"34,775","Sicilian Defense: Richter-Rauzer, 6...e6",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6
E73,"33,861","King's Indian Defense: Normal Variation, Standard Development",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2
D90,"33,808",Gruenfeld Defense: Three Knights Variation,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7
A80,"32,958",Dutch Defense,1.d4 f5
B75,"32,680","Sicilian Defense: Dragon Variation, Yugoslav Attack Early deviations",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3
D15,"32,645",Slav Defense: Two Knights Attack,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4
C90,"32,315","Ruy Lopez: Closed Variations, Closed Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6
E94,"32,189",King's Indian Defense: Orthodox Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O
B30,"32,018",Sicilian Defense: Nyezhmetdinov-Rossolimo Attack,1.e4 c5 2.Nf3 Nc6 3.Bb5
B94,"31,436",Sicilian Defense: Najdorf Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5
C46,"31,288",Three Knights Opening,1.e4 e5 2.Nf3 Nc6 3.Nc3
C16,"30,397","French Defense: Winawer Variation, Advance Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5
E00,"29,931",Catalan Opening,1.d4 Nf6 2.c4 e6 3.g3
C05,"29,821","French Defense: Tarrasch Variation, Closed Variation",1.e4 e6 2.d4 d5 3.Nd2 Nf6
B60,"28,612",Sicilian Defense: Richter-Rauzer Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5
A07,"28,515",King's Indian Attack,1.Nf3 d5 2.g3
A05,"28,441",King's Indian Attack: Symmetrical Defense,1.Nf3 Nf6 2.g3 g6
D27,"28,269","Queen's Gambit Accepted: Classical Defense, Main Lines",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6
B62,"28,204","Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation Early deviations",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6
C18,"28,030","French Defense: Winawer Variation, Advance Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3
A00,"27,279",Hungarian Opening,1.g3
C65,"27,068",Ruy Lopez: Berlin Defense,1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6
B72,"26,876","Sicilian Defense: Dragon, 6.Be3",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3
B92,"26,352","Sicilian Defense: Najdorf Variation, Opocensky Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2
C46,"26,249",Four Knights Game,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6
A30,"25,772",English Opening: Symmetrical Variation,1.c4 c5
D26,"25,689",Queen's Gambit Accepted: Classical Defense,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5
B40,"25,573","Sicilian Defense: French Variation, Normal",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6
B06,"25,376",Modern Defense: Standard Defense,1.e4 g6 2.d4 Bg7 3.Nc3 d6
C02,"25,361",French Defense: Advance Variation,1.e4 e6 2.d4 d5 3.e5 c5 4.c3
C02,"24,920","French Defense: Advance Variation, Paulsen Attack",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3
B13,"24,869",Caro-Kann Defense: Panov Attack,1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3
E67,"24,711","King's Indian Defense: Fianchetto Variation, Classical Fianchetto",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5
E06,"24,616",Catalan Opening: Closed Variation,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3
C55,"24,501",Italian Game: Two Knights Defense,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6
B34,"24,190","Sicilian Defense: Accelerated Dragon, Modern Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3
A40,"24,169",Horwitz Defense,1.d4 e6
B13,"23,861",Caro-Kann Defense: Panov Attack,1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4
B06,"23,664",Robatsch (Modern) Defense,1.e4 g6 2.d4 Bg7
B06,"23,351",Modern Defense: King Pawn Fianchetto,1.e4 g6
E12,"23,217",Queen's Indian Defense: Petrosian Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3
D17,"23,145",Slav Defense: Czech Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5
A16,"22,922","English Opening: Anglo-Indian Defense, Queen's Knight Variation",1.c4 Nf6 2.Nc3
D31,"22,905",Semi-Slav Defense: Acclerated Move Order,1.d4 d5 2.c4 e6 3.Nc3 c6
A45,"22,613",Trompowsky Attack,1.d4 Nf6 2.Bg5
B57,"22,604","Sicilian Defense: Sozin, not Scheveningen",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4
D47,"22,526",Semi-Slav Defense: Semi-Meran Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4
B36,"22,501","Sicilian Defense: Accelerated Dragon, Maroczy Bind",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4
B24,"22,217","Sicilian Defense: Closed Variation, Fianchetto Variation",1.e4 c5 2.Nc3 Nc6 3.g3
B51,"22,096",Sicilian Defense: Canal Attack,1.e4 c5 2.Nf3 d6 3.Bb5+
D55,"22,071","Queen's Gambit Declined: Neo-Orthodox Variation, Main Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4
A13,"22,043",English Opening: Neo-Catalan,1.c4 e6 2.Nf3 d5 3.g3 Nf6
B03,"21,965",Alekhine Defense: Normal Variation,1.e4 Nf6 2.e5 Nd5 3.d4 d6
D46,"21,676",Semi-Slav Defense: Main Lines,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3
B33,"21,572",Sicilian Defense: Lasker-Pelikan Variation,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5
E81,"21,395","King's Indian Defense: Saemisch Variation, Normal Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O
A22,"21,166","English Opening: King's English Variation, Two Knights' Variation",1.c4 e5 2.Nc3 Nf6
D15,"20,892",Slav Defense: Chameleon Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 a6
D37,"20,620",Queen's Gambit Declined: Harrwitz Attack,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bf4
D53,"20,599",Queen's Gambit Declined: 4.Bg5 Be7,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7
E60,"20,549","King's Indian Defense: Fianchetto Variation, Immediate Fianchetto",1.d4 Nf6 2.c4 g6 3.g3
E17,"20,451",Queen's Indian Defense: Kasparov-Petrosian Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3
D25,"20,422",Queen's Gambit Accepted: Normal Variation,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3
A49,"20,380",Indian Game: Przepiorka Variation,1.d4 Nf6 2.Nf3 g6 3.g3
B77,"20,316","Sicilian Defense: Dragon Variation, Yugoslav Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6
D55,"20,140","Queen's Gambit Declined: Modern Variation, Normal Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3
D85,"20,054",Gruenfeld Defense: Exchange Variation,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5
A42,"19,906",Modern Defense: Averbakh Variation,1.d4 g6 2.c4 Bg7 3.Nc3 d6  4.e4
A28,"19,889","English Opening: King's English Variation, Four Knights Variation",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6
B08,"19,708","Pirc Defense: Classical Variation, Quiet System",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2
B42,"19,578","Sicilian Defense: Kan Variation, Modern Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3
B13,"19,390",Caro-Kann Defense: Exchange Variation,1.e4 c6 2.d4 d5 3.exd5
C23,"19,385",Bishop's Opening,1.e4 e5 2.Bc4
E15,"19,261",Queen's Indian Defense: Fianchetto Traditional,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7
A60,"19,108",Benoni Defense: Modern Variation,1.d4 Nf6 2.c4 c5 3.d5 e6
B12,"19,031",Caro-Kann Defense: Advance Variation,1.e4 c6 2.d4 d5 3.e5
B90,"18,991","Sicilian Defense: Najdorf Variation, English Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3
B36,"18,957",Sicilian Defense: Accelerated Dragon,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6
C80,"18,880",Ruy Lopez: Open Variations,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3
A61,"18,773",Benoni Defense,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6
A09,"18,696",Reti Opening,1.Nf3 d5 2.c4
B08,"18,663","Pirc Defense: Classical Variation, Two Knights System",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7
B01,"18,639",Scandinavian Defense: Mieses-Kotroc Variation,1.e4 d5 2.exd5 Qxd5
B33,"18,597","Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5
B45,"18,594",Sicilian Defense: Four Knights Variation,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6
D25,"18,296",Queen's Gambit Accepted: Deferred,1.d4 d5 2.Nf3 Nf6 3.c4 dxc4
B14,"18,232",Caro-Kann Defense: Panov Attack,1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6
C05,"18,204","French Defense: Tarrasch Variation, Closed Variation",1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6
C02,"18,112",French Defense: Advance Variation,1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6
A49,"17,930","Indian Game: King's Indian Variation, Fianchetto Variation",1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2
B84,"17,803","Sicilian Defense: Scheveningen Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6
A04,"17,577",Zukertort Opening: Sicilian Invitation,1.Nf3 c5
C41,"17,464",Philidor Defense,1.e4 e5 2.Nf3 d6 3.d4
B77,"17,326","Sicilian Defense: Dragon Variation, Yugoslav Attack Main Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4
E63,"17,203","King's Indian Defense: Fianchetto Variation, Panno Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O a6
B25,"17,068","Sicilian Defense: Closed Variation, Traditional",1.e4 c5 2.Nc3 Nc6
C88,"16,994","Ruy Lopez: Closed, 7...O-O",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O
B02,"16,851",Alekhine Defense,1.e4 Nf6
D50,"16,642",Queen's Gambit Declined: Modern Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5
C17,"16,580","French Defense: Winawer Variation, Advance Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3
C27,"16,439",Vienna Game,1.e4 e5 2.Nc3
C07,"16,401","French Defense: Tarrasch Variation, Open System",1.e4 e6 2.d4 d5 3.Nd2 c5
B90,"16,325","Sicilian Defense: Najdorf, Lipnitzky attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4
A53,"16,290",Old Indian Defense,1.d4 Nf6 2.c4 d6
B25,"16,259",Sicilian Defense: Closed,1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6
B88,"16,231","Sicilian Defense: Sozin Attack, Leonhardt Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6
E68,"16,136","King's Indian,Fianchetto, Classical Variation , 8.e4",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4
D21,"16,062",Queen's Gambit Accepted: Normal Variation,1.d4 d5 2.c4 dxc4 3.Nf3
D85,"16,002","Gruenfeld Defense: Exchange Variation, Modern Exchange Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3
C53,"15,947",Italian Game: Classical Variation,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3
A21,"15,933","English Opening: King's English Variation, Reversed Sicilian",1.c4 e5 2.Nc3
A17,"15,841","English Opening: Anglo-Indian Defense, Anti-Anti-Grünfeld",1.c4 Nf6 2.Nc3 g6 3.Nf3 Bg7 4.e4
B07,"15,793",Pirc Defense: Classical Variation,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3
B22,"15,781","Sicilian Defense: Alapin Variation, Barmen Defense",1.e4 c5 2.c3 d5 3.exd5 Qxd5
B31,"15,687","Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation",1.e4 c5 2.Nf3 Nc6 3.Bb5 g6
D18,"15,668","Slav Defense: Czech Variation, Classical System",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3
A41,"15,609","Rat Defense: See also: Modern Defense (for lines with ,,,g6)",1.d4 d6
A30,"15,568","English Opening: Symmetrical Variation, Hedgehog Defense",1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7
A13,"15,449",English Opening: Agincourt Defense,1.c4 e6
C41,"15,416",Philidor Defense: Lion Variation,1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Nc3 Ngf6
B93,"15,401","Sicilian Defense: Najdorf Variation, Amsterdam Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4
A46,"15,362",Indian Game: Spielmann-Indian,1.d4 Nf6 2.Nf3 c5
E12,"15,237",Queen's Indian Defense: Kasparov Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3
E17,"15,150",Queen's Indian Defense: Classical Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O
C71,"15,055","Ruy Lopez: Morphy Defense, Modern Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6
C50,"14,999",Italian Game: Italian Variation,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5
B67,"14,850","Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7
C80,"14,770","Ruy Lopez: Open, 6.d4",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4
B04,"14,671",Alekhine Defense: Modern Variation,1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3
B06,"14,565",Modern Defense: Two Knights Variation,1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3
E94,"14,498","King's Indian Defense: Orthodox Variation, Positional Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7
B33,"14,417","Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation Chelyabinsk Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nd5
D26,"14,408","Queen's Gambit Accepted: Normal Variation, Traditional System",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6
B40,"14,217",Sicilian Defense: Delayed Alapin Variation,1.e4 c5 2.Nf3 e6 3.c3
A13,"14,112","English Opening: Agincourt Defense, King's Knight",1.c4 e6 2.Nf3 d5
D38,"14,075",Queen's Gambit Declined: Ragozin Defense,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4
C53,"13,955","Italian Game: Classical Variation, Giuoco Pianissimo",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3
B19,"13,927","Caro-Kann Defense: Classical, 7...Nd7",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7
A43,"13,772",Old Benoni Defense,1.d4 c5
B02,"13,767",Alekhine Defense: Normal Variation,1.e4 Nf6 2.e5 Nd5
B50,"13,730",Sicilian Defense: Delayed Alapin,1.e4 c5 2.Nf3 d6 3.c3
B76,"13,727","Sicilian Defense: Dragon Variation, Yugoslav Attack Belezky Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6
D34,"13,711",Tarrasch Defense: Classical Variation,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O
C67,"13,656","Ruy Lopez: Berlin Defense, Rio Gambit Accepted",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4
E53,"13,647","Nimzo-Indian Defense: Normal Variation, Bernstein Defense Except Gligoric System",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5
A65,"13,593",Benoni Defense: King Pawn lines,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4
D20,"13,519",Queen's Gambit Accepted,1.d4 d5 2.c4 dxc4
C00,"13,326",French Defense: King's Indian Attack,1.e4 e6 2.d3
B35,"13,323","Sicilian Defense: Accelerated Dragon, Modern  Bc4 Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4
A81,"13,315",Dutch Defense: Fianchetto Attack,1.d4 f5 2.g3
E17,"13,290","Queen's Indian Defense: Classical Variation, Traditional Variation",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3
D14,"13,232","Slav Defense: Exchange Variation, Symmetrical Line",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5
E76,"13,229",King's Indian Defense: Four Pawns Attack,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4
B58,"13,006",Sicilian Defense: Classical Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2
C91,"13,006","Ruy Lopez: Closed Variations, Yates Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.d4
C96,"12,994","Ruy Lopez: Closed Variations, Closed Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2
C48,"12,967",Four Knights Game: Spanish Variation,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5
B22,"12,844","Sicilian Defense: Alapin Variation, Smith-Morra Declined",1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4
B46,"12,785",Sicilian Defense: Paulsen Variation,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6
B12,"12,768",Caro-Kann Defense: Modern Variation,1.e4 c6 2.d4 d5 3.Nd2
E11,"12,749",Bogo-Indian Defense: Grünfeld Variation,1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2
C18,"12,708","French Defense: Winawer Variation, Advance Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7
C96,"12,692","Ruy Lopez: Closed Variations, Closed Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5
C11,"12,628",French Defense: Steinitz Variation,1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3
B89,"12,595","Sicilian Defense: Sozin Attack, Main Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6 7.Be3
A46,"12,582",Indian Game: Yusupov-Rubinstein System,1.d4 Nf6 2.Nf3 e6 3.e3
E21,"12,346",Nimzo-Indian Defense: Three Knights Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3
C47,"12,308",Four Knights Game: Scotch Variation,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4
C26,"12,254",Vienna Game: Falkbeer Variation,1.e4 e5 2.Nc3 Nf6
B38,"12,204","Sicilian Defense: Accelerated Dragon, Maroczy Bind",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3
B50,"12,159","Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order",1.e4 c5 2.Nf3 d6 3.d4 Nf6
C42,"12,152",Russian Game: Classical Attack,1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4
D58,"12,142",Queen's Gambit Declined: Tartakower Defense,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6
B09,"12,123",Pirc Defense: Austrian Attack,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4
E41,"12,088",Nimzo-Indian Defense: Huebner Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5
E12,"12,022","Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5
E92,"12,015","King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3
C88,"11,923","Ruy Lopez: Closed, 8.c3",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3
D13,"11,889",Slav Defense: Exchange Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5
A31,"11,763","English Opening: Symmetrical Variation, Anti-Benoni Variation",1.c4 c5 2.Nf3 Nf6 3.d4
A58,"11,718","Benko Gambit: Accepted, Fully Accepted Variation",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6
D35,"11,703",Queen's Gambit Declined: Exchange Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5
B83,"11,698","Sicilian Defense: Scheveningen Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2
A42,"11,638",Sicilian Defense: Hyperaccelerated Fianchetto,1.e4 c5 2.Nf3 g6 3.d4
D12,"11,551","Slav Defense: Quiet Variation, Schallopp Defense",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5
C01,"11,429",French Defense: Exchange Variation,1.e4 e6 2.d4 d5 3.exd5
C42,"11,400",Russian Game: Three Knights Game,1.e4 e5 2.Nf3 Nf6 3.Nc3
B77,"11,336","Sicilian Defense: Dragon Variation, Yugoslav Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7
A37,"11,302","English Opening: Symmetrical Variation, Two Knights Line",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3
A17,"11,266","English Opening: Anglo-Indian Defense, Hedgehog System",1.c4 Nf6 2.Nc3 e6
D35,"11,181","Queen's Gambit Declined: Exchange Variation, Positional Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5
B03,"11,145",Alekhine Defense,1.e4 Nf6 2.e5 Nd5 3.d4
D47,"11,116",Semi-Slav Defense: Meran Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5
A10,"11,106",English Opening: Great Snake Variation,1.c4 g6
C11,"11,090","French Defense: Steinitz Variation, Boleslavsky Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3
C55,"11,070","Italian Game: Two Knights Defense, Modern Bishop's Opening",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3
B27,"11,044",Sicilian Defense: Hyperaccelerated Dragon,1.e4 c5 2.Nf3 g6
E04,"11,027",Catalan Opening: Open Defense,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3
A70,"10,897",Benoni Defense: Classical Variation,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3
B63,"10,811","Sicilian Defense: Richter-Rauzer Variation, Traditional Variatoin",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2
D32,"10,808",Tarrasch Defense: Symmetrical Variation,1.d4 d5 2.c4 e6 3.Nc3 c5 4.e3 Nf6 5.Nf3 Nc6
D32,"10,803",Tarrasch Defense,1.d4 d5 2.c4 e6 3.Nc3 c5
A36,"10,802","English Opening: Symmetrical Variation, Symmetrical Variation",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7
A13,"10,734","English Opening: Anglo-Indian Defense, Queen's Indian Formation",1.c4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7
A55,"10,728",Old Indian Defense: Normal Variation,1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.e4
D34,"10,707","Tarrasch Defense: Prague Variation, Main Line",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7
A25,"10,692","English Opening: King's English Variation, Taimanov Variation",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7
B06,"10,597",Modern Defense: Pseudo-Austrian Attack,1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4
D33,"10,565",Tarrasch Defense: Rubinstein System,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3
B17,"10,553",Caro-Kann Defense: Karpov Variation,1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7
C50,"10,525","Italian Game: Giuoco Pianissimo, Normal",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6
E21,"10,443","Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 b6
E01,"10,378",Catalan Opening: Closed Variation,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2
C11,"10,377","French Defense: Classical Variation, Steinitz Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5
E62,"10,357","King's Indian Defense: Fianchetto Variation, Karlsbad Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6
B32,"10,351",Sicilian Defense: Kalashnikov Variation,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6
D31,"10,293",Queen's Gambit Declined: Charousek (Petrosian) Variation,1.d4 d5 2.c4 e6 3.Nc3 Be7
B10,"10,277",Caro-Kann Defense: Accelerated Panov Attack,1.e4 c6 2.c4
B23,"10,241",Sicilian Defense: Grand Prix Attack,1.e4 c5 2.Nc3 Nc6 3.f4
C53,"10,141",Italian Game: Classical Variation,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6
C02,"10,134","French Defense: Advance Variation, Main Line",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3
A25,"10,123","English Opening: King's English Variation, Reversed Closed Sicilian",1.c4 e5 2.Nc3 Nc6
C80,"10,112","Ruy Lopez: Open Variations, Open Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4
B63,"10,102","Sicilian Defense: Richter-Rauzer Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7
E92,"10,061",King's Indian Defense: Petrosian Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5
A48,"9,944",Torre Attack: Fianchetto Defense,1.d4 Nf6 2.Nf3 g6 3.Bg5
A46,"9,940",Indian Game: Wade-Tarkatower Defense,1.d4 Nf6 2.Nf3 d6
C17,"9,870","French Defense: Winawer Variation, Advance Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5
C30,"9,843",King's Gambit,1.e4 e5 2.f4
B10,"9,802",Caro-Kann Defense: Two Knights Attack,1.e4 c6 2.Nc3 d5 3.Nf3
E14,"9,801",Queen's Indian Defense: Spassky System,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3
E43,"9,762","Nimzo-Indian Defense: St, Petersburg Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6
E73,"9,678",King's Indian Defense: Averbakh Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5
D40,"9,602",Queen's Gambit Declined: Semi-Tarrasch Defense,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5
A46,"9,596",Torre Attack: Classical Defense,1.d4 Nf6 2.Nf3 e6 3.Bg5
D32,"9,574",Tarrasch Defense: Two Knights Variation,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3
D34,"9,508","Tarrasch Defense: Classical Variation, Carlsbad Variation",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.Bg5
B32,"9,439",Sicilian Defense: Löwenthal Variation,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5
B25,"9,423",Sicilian Defense: Closed Variation,1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4
C41,"9,420",Philidor Defense,1.e4 e5 2.Nf3 d6
E15,"9,383","Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation Quiet Line",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3
C13,"9,288","French Defense: Classical Variation, Normal Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7
B76,"9,258","Sicilian Defense: Dragon Variation, Yugoslav Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O
D60,"9,215",Queen's Gambit Declined: Orthodox Defense,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7
B18,"9,122",Caro-Kann Defense: Classical Variation,1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5
C07,"9,104","French Defense: Tarrasch Variation, Open System Euwe-Keres Line",1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3
D26,"9,100","Queen's Gambit Accepted: Classical Defense, Normal Lines",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O
A90,"9,030",Dutch Defense: Classical Variation,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2
B48,"8,938","Sicilian Defense: Paulsen Variation, Bastrikov Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3
D10,"8,906",Slav Defense: Exchange Variation,1.d4 d5 2.c4 c6 3.cxd5
E71,"8,895",King's Indian Defense: Makagonov Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.h3
D30,"8,870","Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch",1.d4 d5 2.c4 e6 3.Nf3 c5
B37,"8,868","Sicilian Defense: Accelerated Fianchetto, Maroczy bind, 5...Bg7",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7
A29,"8,836","English Opening: King's English Variation, Four Knights Variation Fianchetto Lines",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3
A04,"8,805",Zukertort Opening: Kingside Fianchetto,1.Nf3 g6
D44,"8,751",Semi-Slav Defense: Accepted,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4
C97,"8,734","Ruy Lopez: Closed Variations, Chigorin Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7
E15,"8,621","Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6
A41,"8,577",Old Indian Defense,1.d4 d6 2.c4
D30,"8,548",Queen's Gambit Declined: Traditional Variation,1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5
B07,"8,544",Czech Defense,1.e4 d6 2.d4 Nf6 3.Nc3 c6
B00,"8,481",Nimzowitsch Defense,1.e4 Nc6
B87,"8,424","Sicilian Defense: Sozin Attack, Flank Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 a6 7.Bb3 b5
A14,"8,372","English Opening: Agincourt Defense, Neo Catalan Declined",1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O
A81,"8,360",Dutch Defense: Semi-Leningrad Variation,1.d4 f5 2.g3 Nf6 3.Bg2 g6
A43,"8,311","Benoni Defense: Benoni-Indian Defense, Kingside move order",1.d4 c5 2.d5 Nf6 3.Nf3
A84,"8,273",Dutch Defense: Classical Variation,1.d4 f5 2.c4 e6
A56,"8,244",Benoni Defense: Czech Benoni Defense,1.d4 Nf6 2.c4 c5 3.d5 e5
D63,"8,193","Queen's Gambit Declined: Orthodox Defense, Main Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1
A11,"8,169",English Opening: Anglo-Slav Variation,1.c4 c6
D04,"8,102",Queen Pawn Game: Colle System,1.d4 d5 2.Nf3 Nf6 3.e3
D91,"8,056","Gruenfeld Defense: Three Knights Variation, Petrosian System",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5
C06,"8,037","French Defense: Tarrasch Variation, Closed Variation Main Line",1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4
B10,"8,034",Caro-Kann Defense: Accelerated Panov Attack,1.e4 c6 2.c4 d5
D96,"8,017",Gruenfeld Defense: Russian Variation,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3
C44,"7,982","Scotch Game: Scotch Gambit, Dubois Reti Defense",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Nf6
A00,"7,969",Hungarian Opening: Symmetrical Variation,1.g3 g6
D33,"7,954",Tarrasch Defense: Prague Variation,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6
A41,"7,919",Modern Defense,1.d4 g6 2.c4 Bg7 3.Nc3 d6
C49,"7,914",Four Knights Game: Double Spanish,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4
C43,"7,890",Russian Game: Modern Attack,1.e4 e5 2.Nf3 Nf6 3.d4
B08,"7,865","Pirc Defense: Classical Variation, Schlechter Variation",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.h3
D77,"7,836",Neo-Gruenfeld Defense: Classical Variation,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O
D94,"7,828","Gruenfeld Defense: Three Knights Variation, Burille Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3
B96,"7,774",Sicilian Defense: Najdorf Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4
A35,"7,769","English Opening: Symmetrical Variation, Four Knights Variation",1.c4 c5 2.Nc3 Nc6 3.Nf3 Nf6
C45,"7,738",Scotch Game: Classical Variation,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5
E48,"7,689","Nimzo-Indian Defense: Normal Variation, Bishop Attack Classical Defense",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5
C24,"7,616",Bishop's Opening: Berlin Defense,1.e4 e5 2.Bc4 Nf6
E67,"7,557","King's Indian Defense: Fianchetto Variation, Debrecen Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7
A22,"7,516","English Opening: King's English Variation, Two Knights' Variation Fianchetto Line",1.c4 e5 2.Nc3 Nf6 3.g3
B98,"7,497",Sicilian Defense: Najdorf Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7
A07,"7,482",King's Indian Attack: Yugoslav Variation,1.Nf3 d5 2.g3 Nf6 3.Bg2 c6 4.O-O Bg4
E85,"7,461","King's Indian Defense: Saemisch Variation, Orthodox Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5
E11,"7,436",Bogo-Indian Defense: Nimzowitsch Variation,1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7
B09,"7,417",Pirc Defense: Austrian Attack,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O
E54,"7,238","Nimzo-Indian Defense: Panov Attack, Main Line",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Nf3 cxd4 6.exd4 d5
A10,"7,165",English Opening: Anglo-Dutch Defense,1.c4 f5
B10,"7,129",Caro-Kann Defense,1.e4 c6 2.Nc3
A00,"7,089",Van Geet Opening: Caro-Kann Variation,1.Nc3 d5 2.e4 c6
D78,"7,056","Neo-Gruenfeld Defense: Classical Variation, Original Defense",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6
D44,"6,964",Queen's Gambit Declined: Vienna Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 dxc4
B83,"6,931","Sicilian Defense: Scheveningen Variation, Modern Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 Nc6
B13,"6,907","Caro-Kann Defense: Panov Attack, Modern Defense",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6
B72,"6,897","Sicilian Defense: Dragon Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2
E34,"6,875","Nimzo-Indian Defense: Classical Variation, Noa Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5
B53,"6,869",Sicilian Defense: Chekhover Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4
B78,"6,865","Sicilian Defense: Dragon Variation, Yugoslav Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O
B09,"6,810","Pirc Defense: Austrian Attack, Weiss Variation",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3
D52,"6,765",Queen's Gambit Declined,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3
C45,"6,739",Scotch Game: Schmidt Variation,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6
C68,"6,729",Ruy Lopez: Exchange Variation,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6
C11,"6,705","French Defense: Classical Variation, Burn Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4
C18,"6,696","French Defense: Winawer Variation, Poisoned Pawn Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4
D19,"6,644","Queen's Gambit Declined: Slav,Dutch Variation",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O
E56,"6,612","Nimzo-Indian Defense: Normal Variation, Gligoric System Bernstein Defense",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6
D01,"6,546",Richter-Veresov attack,1.d4 d5 2.Nc3 Nf6 3.Bg5
A15,"6,473","English Opening: Anglo-Indian Defense, Queen's Indian Formation",1.c4 Nf6 2.Nf3 b6
B81,"6,446","Sicilian Defense: Scheveningen Variation, Keres Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4
C69,"6,420","Ruy Lopez: Exchange Variation, Gligoric Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6
D37,"6,345",Queen's Gambit Declined: Barmen Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Nbd7
A70,"6,334","Benoni Defense: Classical Variation, New York Variation",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.h3
E76,"6,269",King's Indian Defense: Steiner Attack,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5
B80,"6,267","Sicilian Defense: Scheveningen Variation, English Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.f3
B14,"6,266","Caro-Kann Defense: Panov Attack, Fianchetto Defense",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 g6
E32,"6,258","Nimzo-Indian Defense: Classical Variation, Keres Defense",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 O-O 5.a3 Bxc3+ 6.Qxc3 b6
B52,"6,256","Sicilian Defense: Canal Attack, Main Line",1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7
A84,"6,232",Dutch Defense,1.d4 f5 2.c4
C10,"6,222","French Defense: Rubinstein Variation, Blackburne Defense",1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7
A48,"6,215",Indian Game: London System,1.d4 Nf6 2.Nf3 g6 3.Bf4
B01,"6,215",Scandinavian Defense: Modern Variation,1.e4 d5 2.exd5 Nf6 3.d4
A33,"6,213","English Opening: Symmetrical Variation, Anti-Benoni Variation Spielmann Defense",1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6
C10,"6,198",French Defense: Rubinstein Variation,1.e4 e6 2.d4 d5 3.Nc3 dxe4
A90,"6,158","Dutch Defense: Stonewall Variation, Modern Variation",1.d4 f5 2.c4 e6 3.Nf3 Nf6 4.g3 c6 5.Bg2 d5 6.O-O Bd6
C63,"6,153",Ruy Lopez: Schliemann Defense,1.e4 e5 2.Nf3 Nc6 3.Bb5 f5
B12,"6,112","Caro-Kann Defense: Advance Variation, Short Variation",1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3
B40,"6,112","Sicilian Defense: French Variation, Westerinen Attack",1.e4 c5 2.Nf3 e6 3.b3
E87,"6,108","King's Indian Defense: Saemisch Variation, Closed Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5
A87,"6,077",Dutch Defense: Leningrad Variation,1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3
D17,"6,075","Slav Defense: Czech Variation, Krause Attack",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5
C65,"6,042",Ruy Lopez: Berlin Defense,1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O
D63,"6,030","Queen's Gambit Declined: Orthodox Defense, Main Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6
A13,"5,997","English Opening: Agincourt Defense, Catalan Defense Accepted",1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4
B83,"5,996","Sicilian Defense: Scheveningen Variation, Modern Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 Nc6 7.O-O Be7 8.Be3 O-O 9.f4
B28,"5,995",Sicilian Defense: O'Kelly Variation,1.e4 c5 2.Nf3 a6
C90,"5,985","Ruy Lopez: Closed Variations, Pilnik Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.d3
C25,"5,960",Vienna Game: Max Lange Defense,1.e4 e5 2.Nc3 Nc6
B01,"5,930",Scandinavian Defense: Modern Variation,1.e4 d5 2.exd5 Nf6
B01,"5,815","Scandinavian Defense: Main Lines, Mieses Variation",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6
B06,"5,801",Modern Defense: Geller's System,1.e4 g6 2.d4 Bg7 3.Nf3 d6 4.c3
E94,"5,793","King's Indian Defense: Orthodox Variation, Glek Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Na6
D41,"5,764","Queen's Gambit Declined: Semi-Tarrasch, 5.cd",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5
E47,"5,739","Nimzo-Indian Defense: Normal Variation, Bishop Attack",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3
B41,"5,735","Sicilian Defense: Kan Variation, Maroczy Bind Reti Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4
A57,"5,725","Benko Gambit: Declined, Main Line",1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nf3
E69,"5,655","King's Indian Defense: Fianchetto Variation, Classical Main Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 9.h3
D48,"5,583",Semi-Slav Defense: Meran Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6
A45,"5,577",Trompowsky Attack: Classical Defense,1.d4 Nf6 2.Bg5 e6
C99,"5,570","Ruy Lopez: Morphy Defense, Chigorin Defense Panov System",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 13.cxd4
E83,"5,534","King's Indian Defense: Saemisch Variation, Yates Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6
D44,"5,493",Semi-Slav Defense: Botvinnik Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4
A41,"5,445",Rat Defense: English Rat,1.d4 d6 2.c4 e5
D02,"5,439","Queen Pawn Game: Symmetrical Variation, Pseudo-Catalan",1.d4 d5 2.Nf3 Nf6 3.g3
B76,"5,435","Sicilian Defense: Dragon Variation, Yugoslav Attack Modern Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.O-O-O
C47,"5,421","Four Knights Game: Scotch Variation, Accepted",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4
C92,"5,421","Ruy Lopez: Closed Variations, Flohr System",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Bb7
B57,"5,411","Sicilian Defense: Classical Variation, Anti-Sozin Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6
B92,"5,378","Sicilian Defense: Najdorf Variation, Opocensky Variation Traditional Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O
B04,"5,372","Alekhine Defense: Modern Variation, Alburt Variation",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6
B99,"5,358","Sicilian Defense: Najdorf Variation, Main Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.O-O-O Nbd7
A51,"5,357",Indian Game: Budapest Defense,1.d4 Nf6 2.c4 e5
D52,"5,349",Queen's Gambit Declined: Cambridge Springs Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.Nf3 c6 6.e3 Qa5
B18,"5,342","Caro-Kann Defense: Classical Variation, Main lines",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4
B01,"5,323",Scandinavian Defense: Main Lines,1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5
B98,"5,316","Sicilian Defense: Najdorf Variation, Traditional Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7
E57,"5,314","Nimzo-Indian Defense: Normal Variation, Bernstein Defense Exchange Line",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3
B32,"5,308",Sicilian Defense: Flohr Variation,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7
E75,"5,271","King's Indian Defense: Averbakh Variation, Benoni Defense Advance Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5
C04,"5,265","French Defense: Tarrasch Variation, Guimard Defense Main Line",1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6
C57,"5,249","Italian Game: Two Knights Defense, Knight Attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5
A57,"5,238",Benoni Defense: Hromodka System,1.d4 Nf6 2.c4 c5 3.d5 d6
C08,"5,212","French Defense: Tarrasch, Open, 4.ed ed",1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5
D24,"5,208",Queen's Gambit Accepted: Showalter Variation,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3
B21,"5,208",Sicilian Defense: Smith-Morra gambit,1.e4 c5 2.d4
B03,"5,195",Alekhine Defense: Exchange Variation,1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.exd6
B60,"5,181","Sicilian Defense: Richter-Rauzer Variation, Modern Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7
E20,"5,162",Nimzo-Indian Defense: Kmoch Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3
A02,"5,158",Bird Opening,1.f4
D12,"5,154","Slav Defense: Quiet Variation, Pin Defense",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bg4
A04,"5,150",Zukertort Opening: Queen's Gambit Invitation,1.Nf3 e6
C63,"5,148","Ruy Lopez: Schliemann Defense, Dyckhoff Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3
C02,"5,129","French Defense: Advance Variation, Euwe Variation",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7
B00,"5,108",Nimzowitsch Defense: Declined Variation,1.e4 Nc6 2.Nf3
E54,"5,060","Nimzo-Indian Defense: Normal Variation, Gligoric System Exchange at c4",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4
D31,"5,042",Semi-Slav Defense: Noteboom Variation,1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4
A17,"5,031","English Opening: Anglo-Indian Defense, Nimzo-English Opening",1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4
C69,"4,989","Ruy Lopez: Exchange Variation, Normal Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O
D07,"4,974",Queen's Gambit Declined: Chigorin Defense,1.d4 d5 2.c4 Nc6
E77,"4,973","King's Indian Defense: Four Pawns Attack, Normal Attack",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.d5 e6 8.Nf3
B73,"4,963","Sicilian Defense: Dragon Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6
B07,"4,955",Pirc Defense: Byrne Variation,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bg5
A54,"4,953",Old Indian Defense: Ukrainian Variation,1.d4 Nf6 2.c4 d6 3.Nc3 e5
D45,"4,953",Semi-Slav Defense: Accelerated Meran Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 a6
E17,"4,952",Queen's Indian Defense: Anti-Queen's Indian System,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3
A01,"4,949",Nimzo-Larsen Attack,1.b3
A88,"4,947","Dutch Defense: Leningrad Variation, Warsaw Variation",1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 c6
D02,"4,944",Queen Pawn Game: London System,1.d4 d5 2.Nf3 Nf6 3.Bf4
E91,"4,941",King's Indian Defense: Kazakh Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 Na6
C91,"4,928","Ruy Lopez: Closed Variations, Bogoljubow Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.d4 Bg4
B23,"4,895","Sicilian Defense: Closed Variation, Chameleon Variation",1.e4 c5 2.Nc3 Nc6 3.Nge2
C12,"4,876",French Defense: MacCutcheon Variation,1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4
D32,"4,849",Queen's Gambit Declined: Tarrasch Defense:  4.cd ed,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5
B07,"4,843",Pirc Defense: Sveshnikov system,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.g3
D20,"4,835",Queen's Gambit Accepted: Old Variation,1.d4 d5 2.c4 dxc4 3.e3
A89,"4,808","Dutch Defense: Leningrad Variation, Matulovic Variation",1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 Nc6
D46,"4,775",Semi-Slav Defense: Chigorin Defense,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Bd6
A50,"4,765",Slav Indian,1.d4 Nf6 2.c4 c6
B43,"4,746","Sicilian Defense: Kan Variation, Wing Attack",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5
D61,"4,732","Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qc2
B29,"4,729",Sicilian Defense: Nimzowitsch Variation,1.e4 c5 2.Nf3 Nf6
A03,"4,695",Bird Opening: Dutch Variation,1.f4 d5
A62,"4,640",Benoni Defense: Fianchetto Variation,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O
D97,"4,636","Gruenfeld Defense: Russian Variation, With e4",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4
C41,"4,634",Philidor Defense: Exchange Variation,1.e4 e5 2.Nf3 d6 3.d4 exd4
D30,"4,632",Semi-Slav Defense: Quiet Variation,1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.e3 c6 5.Nbd2
A04,"4,617",Zukertort Opening: Nimzo-Larsen Variation,1.Nf3 Nf6 2.b3
B26,"4,612",Sicilian Defense: Closed Variation,1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Be3
A34,"4,612","English Opening: Symmetrical Variation, Normal Variation",1.c4 c5 2.Nc3
C28,"4,587","Vienna Game: Stanley Variation, Three Knights Variation",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nc6
A37,"4,575","English Opening: Symmetrical Variation, Botvinnik System Reversed",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e5
A04,"4,558",Zukertort Opening: Dutch Variation,1.Nf3 f5
B06,"4,553","Modern Defense: Two Knights Variation, Suttles Variation",1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 c6
A26,"4,544","English Opening: King's English Variation, Closed System Full Symmetry",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6
E19,"4,533","Queen's Indian Defense: Classical Variation, Traditional Variation Main Line",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 Nxc3 9.Qxc3
A35,"4,479","English Opening: Symmetrical Variation, Two Knights Variation",1.c4 c5 2.Nc3 Nc6
A38,"4,477","English Opening: Symmetrical Variation, Full Symmetry Line",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6
D92,"4,463","Gruenfeld Defense: Three Knights Variation, Hungarian Attack",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4
D66,"4,461",Queen's Gambit Declined: Orthodox Defense:  Bd3 line,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3
C77,"4,460","Ruy Lopez: Morphy Defense, Anderssen Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3
B21,"4,443",Sicilian Defense: McDonnell Attack,1.e4 c5 2.f4
A47,"4,439",Indian Game: Pseudo-Queen's Indian,1.d4 Nf6 2.Nf3 b6
D87,"4,431","Gruenfeld Defense: Exchange Variation, Spassky Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5
E76,"4,430","King's Indian Defense: Four Pawns Attack, Dynamic Attack",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.d5
B09,"4,427","Pirc Defense: Austrian Attack, Dragon Formation",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 c5
A28,"4,409","English Opening: King's English Variation, Four Knights Variation Quiet Line",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3
A40,"4,406",English Defense,1.d4 e6 2.c4 b6
D02,"4,404",Queen Pawn Game: Chigorin  Variation,1.d4 d5 2.Nf3 Nc6
A34,"4,373","English Opening: Symmetrical Variation, Fianchetto Variation",1.c4 c5 2.Nc3 Nf6 3.g3
D82,"4,371",Gruenfeld Defense: Brinckmann Attack,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4
C80,"4,358","Ruy Lopez: Open Variations, Main Lines",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6
B65,"4,340","Sicilian Defense: Richter-Rauzer Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4 Nxd4 10.Qxd4
A45,"4,332",Indian Game: Tartakower Attack,1.d4 Nf6 2.g3
C49,"4,332","Four Knights Game: Double Spanish Misc, with 5,O-O",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3
A16,"4,330",English Opening: Golombek Defense,1.c4 Nf6 2.Nc3 d5
E92,"4,322","King's Indian Defense: Petrosian Variation, Stein Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 a5
A54,"4,317",Old Indian Defense: Two Knights Variation,1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3
D53,"4,314","Queen's Gambit Declined: 4.Bg5 Be7, 5.e3 O-O",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O
C34,"4,306","King's Gambit: Accepted, King's Knight Gambit",1.e4 e5 2.f4 exf4 3.Nf3
C03,"4,303","French Defense: Tarrasch Variation, Guimard Defense",1.e4 e6 2.d4 d5 3.Nd2 Nc6
B08,"4,246","Pirc Defense: Classical Variation, Quiet System Czech Defense",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6
B15,"4,236",Caro-Kann Defense: Gurgenidze System,1.e4 c6 2.d4 d5 3.Nc3 g6
D05,"4,234",Colle System,1.d4 d5 2.Nf3 Nf6 3.e3 e6
C78,"4,208","Ruy Lopez: Morphy Defense, Archangelsk Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7
C43,"4,202","Russian Game: Modern attack, Symmetrical Variation",1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
B19,"4,196","Caro-Kann Defense: Classical, Spassky Variation",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5
E62,"4,182","King's Indian Defense: Fianchetto Variation, Delayed Fianchetto",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3
A44,"4,179","Benoni Defense: Old Benoni, Russian Variation",1.d4 c5 2.d5 e5 3.e4 d6
A04,"4,166",Zukertort Opening: Pirc Invitation,1.Nf3 d6
E62,"4,164","King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O e5
A39,"4,158","English Opening: Symmetrical Variation, Mecking Variation",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4
B21,"4,146",Sicilian Defense: Smith-Morra Gambit,1.e4 c5 2.d4 cxd4 3.c3
B40,"4,144",Sicilian Defense: Kramnik Variation,1.e4 c5 2.Nf3 e6 3.c4
B97,"4,132","Sicilian Defense: Najdorf Variation, Poisoned Pawn Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6
E84,"4,101","King's Indian,Saemisch, Panno Main line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 a6 8.Qd2 Rb8
D15,"4,059",Slav Defense: Schlechter Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 g6
E65,"4,050","King's Indian Defense: Fianchetto Variation, Yugoslav Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O
B32,"4,040",Sicilian Defense: Godiva Variation,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6
A00,"4,032",Van Geet Opening,1.Nc3
A44,"3,993","Benoni Defense: Old Benoni, Pawn Thrust",1.d4 c5 2.d5 e5
A34,"3,978","English Opening: Symmetrical Variation, Three Knights Variation",1.c4 c5 2.Nc3 Nf6 3.Nf3 d5 4.cxd5 Nxd5
A27,"3,962","English Opening: King's English Variation, Three Knights System",1.c4 e5 2.Nc3 Nc6 3.Nf3
C00,"3,936",French Defense: Two Knights Variation,1.e4 e6 2.Nc3 d5 3.Nf3
A18,"3,929","English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation",1.c4 Nf6 2.Nc3 e6 3.e4
D03,"3,926",Queen Pawn Game: Torre Attack,1.d4 d5 2.Nf3 Nf6 3.Bg5
A58,"3,923","Benko Gambit: Accepted, Fianchetto Variation",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 g6 7.Nf3 d6 8.g3 Bg7 9.Bg2
B91,"3,900","Sicilian Defense: Najdorf Variation, Zagreb (Fianchetto) Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3
C64,"3,894",Ruy Lopez: Classical Variation,1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5
D74,"3,866",Neo-Gruenfeld Defense: Delayed Exchange Variation,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O
E62,"3,858","King's Indian Defense: Fianchetto Variation, Kavalek  Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c6 7.O-O Qa5
A80,"3,848",Dutch Defense: Raphael Variation,1.d4 f5 2.Nc3
B12,"3,842","Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense",1.e4 c6 2.d4 d5 3.e5 c5
B02,"3,838",Alekhine Defense: Scandinavian Variation,1.e4 Nf6 2.Nc3 d5
D35,"3,828","Queen's Gambit Declined: Exchange Variation, Positional Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6
C60,"3,825",Ruy Lopez: Fianchetto Defense,1.e4 e5 2.Nf3 Nc6 3.Bb5 g6
E98,"3,815","King's Indian Defense: Orthodox Variation, Classical System Misc, Lines",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1
D02,"3,791",Queen Pawn Game: Krause Variation,1.d4 d5 2.Nf3 c5
C77,"3,787","Ruy Lopez: Morphy Defense, Wormald Attack",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Qe2
E83,"3,753","King's Indian Defense: Saemisch Variation, Panno Formation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 a6
C74,"3,747","Ruy Lopez: Morphy Defense, Modern Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3
A22,"3,740","English Opening: King's English Variation, Two Knights' Variation Reversed Dragon",1.c4 e5 2.Nc3 Nf6 3.g3 d5
D25,"3,730",Queen's Gambit Accepted: Janowski-Larsen Variation,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Bg4
D44,"3,708",Semi-Slav Defense: Anti-Moscow Gambit,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bh4
D51,"3,707","Queen's Gambit Declined: Modern, Knight Defense",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6
D73,"3,680","Neo-Gruenfeld Defense: Misc, with 5,Nf3",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3
C41,"3,672",Philidor Defense: Exchange Variation,1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4
B19,"3,664","Caro-Kann Defense: Classical Variation, Lobron System",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 e6 11.Bd2 Ngf6 12.O-O-O Be7
E38,"3,662","Nimzo-Indian Defense: Classical Variation, Berlin Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5
B10,"3,651",Caro-Kann Defense: Breyer Variation,1.e4 c6 2.d3
C00,"3,648",French Defense: Knight Variation,1.e4 e6 2.Nf3
A43,"3,648",Benoni Defense: Benoni-Indian Defense,1.d4 c5 2.d5 Nf6
C44,"3,643",Scotch Game: Scotch Gambit,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4
C44,"3,640",Ponziani Opening,1.e4 e5 2.Nf3 Nc6 3.c3
C19,"3,634","French Defense: Winawer Variation, Positional Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Nf3
B07,"3,627",Lion Defense: Lion's Jaw,1.e4 d6 2.d4 Nf6 3.f3
B20,"3,592",Sicilian Defense: Snyder Variation,1.e4 c5 2.b3
D28,"3,540","Queen's Gambit Accepted: Classical Defense, Alekhine System",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2
E30,"3,493",Nimzo-Indian Defense: Leningrad Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5
C26,"3,490",Vienna Game: Mieses Variation,1.e4 e5 2.Nc3 Nf6 3.g3
D86,"3,485","Gruenfeld Defense: Exchange Variation, Classical Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4
A12,"3,481","Reti Opening: Anglo-Slav Variation, Bogoljubow Variation III",1.Nf3 d5 2.c4 c6 3.b3
C86,"3,471","Ruy Lopez: Closed Variations, Worrall Attack",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2
C42,"3,460",Russian Game: Cozio (Lasker) Attack,1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Qe2
B16,"3,458",Caro-Kann Defense: Bronstein-Larsen Variation,1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6
D47,"3,456","Semi-Slav Defense: Meran Variation, Wade Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7
B49,"3,449","Sicilian Defense: Paulsen Variation, Bastrikov Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2
E81,"3,440","King's Indian Defense: Saemisch Variation, Bobotsov-Korchnoi-Petrosian Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Nge2
B12,"3,430",Caro-Kann Defense: Maroczy Variation,1.e4 c6 2.d4 d5 3.f3
B12,"3,412","Caro-Kann Defense: Advance Variation, Van der Wiel Attack",1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3
E64,"3,410","King's Indian Defense: Fianchetto Variation, Yugoslav System w/o Nc3",1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 d6 5.Bg2 O-O 6.O-O c5
C15,"3,390","French Defense: Winawer Variation, Alekhine-Maroczy Gambit",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Nge2
C01,"3,385","French Defense: Winawer Variation, Delayed Exchange Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.exd5
E70,"3,370",King's Indian Defense: Kramer Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nge2
B22,"3,360","Sicilian Defense: Alapin Variation, Barmen Defense Modern Line",1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Bg4
E97,"3,343","King's Indian Defense: Orthodox Variation, Bayonet Attack",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.b4
A06,"3,323",Nimzowitsch-Larsen Attack,1.Nf3 d5 2.b3
C41,"3,291",Philidor Defense: Nimzowitsch Variation,1.e4 e5 2.Nf3 d6 3.d4 Nf6
E59,"3,288","Nimzo-Indian Defense: Normal Variation, Bernstein Defense",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3 dxc4 10.Bxc4
B54,"3,276",Sicilian Defense: Prins Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3
A66,"3,274",Benoni Defense: Pawn Storm Variation,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4
D37,"3,264","Queen's Gambit Declined: Harrwitz Attack, Main Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bf4 O-O 6.e3 c5 7.dxc5 Bxc5
B33,"3,232","Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Bxf6 gxf6 10.Nd5 f5
B84,"3,232","Sicilian Defense: Scheveningen Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.O-O Qc7
C28,"3,221",Bishop's Opening: Vienna Hybrid,1.e4 e5 2.Bc4 Nf6 3.d3 Nc6 4.Nc3
C09,"3,190","French Defense: Tarrasch Variation, Open System Main Line",1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6
B48,"3,184","Sicilian Defense: Paulsen Variation, Bastrikov Variation English Attack",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Qd2
C29,"3,174","Vienna Game: Vienna Gambit, Main Line",1.e4 e5 2.Nc3 Nf6 3.f4 d5
B74,"3,155","Sicilian Defense: Dragon Variation, Classical Variation Normal Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6 8.O-O O-O 9.Nb3
B05,"3,149","Alekhine Defense: Modern Variation, Main Line",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4
D31,"3,147",Semi-Slav Defense: Marshall Gambit,1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4
D41,"3,135","Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e3
A41,"3,133",Wade Defense,1.d4 d6 2.Nf3 Bg4
B59,"3,129",Sicilian Defense: Boleslavsky Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nb3
C77,"3,121","Ruy Lopez: Morphy Defense, Mackenzie Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d4
D70,"3,120","Indian Game: Anti-Grünfeld, Alekhine Variation",1.d4 Nf6 2.c4 g6 3.f3
B13,"3,111","Caro-Kann Defense: Exchange  Variation, Rubinstein Variation",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nc6 5.c3 Nf6 6.Bf4
A45,"3,104","Trompowsky Attack: Classical Defense, Big Center Variation",1.d4 Nf6 2.Bg5 e6 3.e4
B39,"3,102","Sicilian Defense: Accelerated Dragon, Maroczy Bind Breyer Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 Ng4
B36,"3,099","Sicilian Defense: Accelerated Dragon, Maroczy Bind Gurgenidze Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6
E11,"3,096",Bogo-Indian Defense: Wade-Smyslov Variation,1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 a5
C72,"3,079","Ruy Lopez: Morphy Defense, Modern Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.O-O
A36,"3,079","English Opening: Symmetrical Variation, Fianchetto Variation",1.c4 c5 2.Nc3 Nc6 3.g3
B86,"3,069",Sicilian Defense: Sozin Attack,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4
B29,"3,065","Sicilian Defense: Nimzowitsch  Variation, Closed Variation",1.e4 c5 2.Nf3 Nf6 3.Nc3
B03,"3,063",Alekhine Defense,1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4
D51,"3,036","Queen's Gambit Declined: Modern, Knight Defense",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3
A46,"3,035",Indian Game: London System,1.d4 Nf6 2.Nf3 e6 3.Bf4
C42,"3,034","Russian Game: Classical Attack, Mason-Showalter Variation",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Nc6
A07,"3,028",King's Indian Attack: Sicilian Variation,1.Nf3 d5 2.g3 c5
B72,"3,013","Sicilian Defense: Dragon, Classical attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2
C89,"3,012",Ruy Lopez: Marshall Attack,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5
D44,"3,009","Queen's Gambit Declined: Vienna Variation, Quiet Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 dxc4 5.e3
D27,"3,004","Queen's Gambit Accepted: Classical Defense, Rubinstein Variation",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.a4
A25,"2,987","English Opening: King's English Variation, Closed System",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3
D55,"2,982",Queen's Gambit Declined: Neo-Orthodox Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6
C67,"2,979","Ruy Lopez: Berlin Defense, l'Hermet Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6
E20,"2,973",Nimzo-Indian Defense: Romanishin Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.g3
A77,"2,973","Benoni Defense: Classical Variation, Czerniak Defense Tal Line",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2
B68,"2,960","Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 Be7
A42,"2,942","Modern Defense: Averbakh System, Kotov Variation",1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 Nc6
D15,"2,940","Slav Defense: Chameleon Variation, Advance System",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 a6 5.c5
B58,"2,927","Sicilian Defense: Classical Variation, Fianchetto Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.g3
A08,"2,904",King's Indian Attack: Sicilian Variation,1.Nf3 d5 2.g3 c5 3.Bg2
D80,"2,901",Gruenfeld Defense: Stockholm Variation,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5
B42,"2,892","Sicilian Defense: Kan Variation, Polugaevsky Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5
E15,"2,884","Queen's Indian Defense: Fianchetto Variation, Check Variation",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4+
B00,"2,882",King Pawn Game: Nimzovich Defense,1.e4 Nc6 2.d4
C48,"2,874","Four Knights Game: Spanish Variation, Rubinstein Variation",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4
A46,"2,872",Indian Game: Pseudo-Benko,1.d4 Nf6 2.Nf3 c5 3.d5 b5
A86,"2,855",Dutch Defense: Fianchetto Variation,1.d4 f5 2.c4 Nf6 3.g3
B80,"2,853","Sicilian Defense: Scheveningen Variation, Fianchetto Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g3
A15,"2,838","English Opening: Anglo-Indian Defense, Old Indian Formation",1.c4 Nf6 2.Nf3 d6
D22,"2,824",Queen's Gambit Accepted: Alekhine Defense,1.d4 d5 2.c4 dxc4 3.Nf3 a6
B85,"2,816","Sicilian Defense: Scheveningen, Classical Main line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.O-O Qc7 8.f4 Nc6 9.Be3 Be7 10.Qe1 O-O
C41,"2,812",Philidor Defense: Exchange Variation,1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 Nf6
D78,"2,784","Neo-Gruenfeld Defense: Classical Variation, Modern Defense",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O dxc4
A96,"2,780",Dutch Defense: Classical Variation,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6
E09,"2,775","Catalan Opening: Closed, Main line",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2
C44,"2,769",Scotch Game: Göring Gambit,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3
A85,"2,768",Dutch Defense: Queen's Knight Variation,1.d4 f5 2.c4 Nf6 3.Nc3
E15,"2,761","Queen's Indian Defense: Fianchetto Variation, Check Variation Intermezzo Line",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4+ 6.Bd2 Be7
A56,"2,760",Benoni Defense: King's Indian System,1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 g6
A73,"2,746","Benoni Defense: Classical Variation, Main line",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O
B08,"2,738","Pirc Defense: Classical Variation, Quiet System Parma Defense",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Bg4
C93,"2,724","Ruy Lopez: Closed Variations, Smyslov Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 h6
B20,"2,720",Sicilian Defense: Lasker-Dunne Attack,1.e4 c5 2.g3
D79,"2,704",Neo-Gruenfeld Defense: Ultra-delayed Exchange Variation,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.cxd5 cxd5
A36,"2,703","English Opening: Symmetrical Variation, Botvinnik System",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e4
C42,"2,685","Russian Game: Classical Attack, Jaenisch Variation",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.c4
C64,"2,684","Ruy Lopez: Classical Variation, Central Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3
B35,"2,680","Sicilian Defense: Dragon Variation, Modern  Bc4 Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 Nc6
E08,"2,667",Catalan Opening: Closed Variation,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2
E12,"2,658","Queen's Indian Defense: Kasparov-Petrosian Variation, Classical Variation",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 exd5
C42,"2,655",Russian Game: Nimzowitsch Attack,1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3
D71,"2,648",Neo-Gruenfeld Defense: Exchange Variation,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.cxd5 Nxd5
C03,"2,644","French Defense: Tarrasch Variation, Modern System",1.e4 e6 2.d4 d5 3.Nd2 a6
B44,"2,630","Sicilian Defense: Paulsen Variation, Szen Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5
C68,"2,625","Ruy Lopez: Exchange Variation, Keres Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.Nc3
A22,"2,615","English Opening: King's English Variation, Two Knights' Variation Smyslov System",1.c4 e5 2.Nc3 Nf6 3.g3 Bb4
C95,"2,598","Ruy Lopez: Morphy Defense, Breyer Defense Zaitsev Hybrid",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Nb8 10.d4 Nbd7
A64,"2,577","Benoni Defense: Fianchetto Variation, Hastings Defense Main Line",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 9.O-O Nbd7 10.Nd2 a6 11.a4 Re8
D07,"2,573","Queen's Gambit Refused: Chigorin Defense, Main Line",1.d4 d5 2.c4 Nc6 3.Nf3 Bg4
C01,"2,572","French Defense: Exchange Variation, Monte Carlo Variation",1.e4 e6 2.d4 d5 3.exd5 exd5 4.c4
C45,"2,568","Scotch Game: Classical Variation, Intermezzo Variation",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nxc6 Qf6
C50,"2,565","Italian Game: Giuoco Pianissimo, Italian Four Knights Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.Nc3
B64,"2,553","Sicilian Defense: Richter-Rauzer Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4
A84,"2,550",Dutch Defense: Normal Variation,1.d4 f5 2.c4 Nf6
D00,"2,548",Queen Pawn Game: Veresov Attack,1.d4 d5 2.Nc3
B01,"2,517",Scandinavian Defense: Gubinsky-Melts Defense,1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6
E11,"2,511",Bogo-Indian Defense: Vitolinsh Variation,1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 c5
E07,"2,490",Catalan Opening: Closed Variation,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7
C14,"2,487","French Defense: Classical Variation, Steinitz Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.f4
C26,"2,470",Vienna Game: Stanley Variation,1.e4 e5 2.Nc3 Nf6 3.Bc4
E62,"2,469","King's Indian Defense: Fianchetto Variation, Lesser Simagin (Spassky)",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O Bf5
E97,"2,462","King's Indian Defense: Orthodox Variation, Bayonet Attack Sokolov's Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.b4 Nh5 10.Re1
C00,"2,450",Queen Pawn Game: Franco-Sicilian Defense,1.d4 e6 2.e4 c5
A13,"2,448","English Opening: Agincourt Defense, Catalan Defense Semi-Slav Defense",1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 c6
B00,"2,442",Nimzowitsch Defense: Williams Variation,1.e4 Nc6 2.Nf3 d6
A00,"2,408",Hungarian Opening: Indian Defense,1.g3 Nf6
C53,"2,407","Italian Game: Classical Variation, Center Attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4
A07,"2,402",King's Indian Attack: Double Fianchetto,1.Nf3 d5 2.g3 g6
B82,"2,388","Sicilian Defense: Scheveningen Variation, Matanovic Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.f4
E10,"2,382",Blumenfeld Countergambit,1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5
C67,"2,378","Ruy Lopez: Berlin Defense, l'Hermet Variation Berlin Wall Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.Qxd8+ Kxd8
B13,"2,355","Caro-Kann Defense: Panov Attack, Modern Defense Mieses Line",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Nf3 Bg4
E35,"2,351","Nimzo-Indian Defense: Classical, Noa Variation , 5.cd ed",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5
A08,"2,350",King's Indian Attack: Sicilian Variation,1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.O-O e6 5.d3 Nf6 6.Nbd2 Be7 7.e4 O-O 8.Re1
C07,"2,345","French Defense: Tarrasch Variation, Chistyakov Defense",1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5
B90,"2,343","Sicilian Defense: Najdorf Variation, Adams Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3
B28,"2,341","Sicilian Defense: O'Kelly Variation, Maroczy Bind",1.e4 c5 2.Nf3 a6 3.c4
B10,"2,339","Caro-Kann Defense: Accelerated Panov Attack, Modern Variation",1.e4 c6 2.c4 d5 3.exd5 cxd5 4.cxd5 Nf6
D76,"2,336",Neo-Gruenfeld Defense: Delayed Exchange Variation,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O Nb6
E70,"2,322",King's Indian Defense: Accelerated Averbakh Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Bg5
B01,"2,320",Scandinavian Defense: Marshall Variation,1.e4 d5 2.exd5 Nf6 3.d4 Nxd5
D93,"2,299","Gruenfeld Defense: Three Knights Variation, Hungarian Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.e3
C11,"2,298","French Defense: Classical Variation, Burn Variation Morozevich Line",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Bxf6 gxf6
B07,"2,283",Rat Defense: Accelerated Gurgenidze,1.e4 g6 2.d4 d6 3.Nc3 c6
C02,"2,282","French Defense: Advance Variation, Wade Variation",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Bd7
B70,"2,280","Sicilian Defense: Dragon Variation, Fianchetto Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3
D08,"2,277",Queen's Gambit Declined: Albin Countergambit,1.d4 d5 2.c4 e5
E88,"2,262","King's Indian Defense: Saemisch Variation, Closed Variation c6",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6
C28,"2,252",Vienna Game: Vienna Gambit,1.e4 e5 2.Nc3 Nf6 3.f4
C78,"2,252","Ruy Lopez: Closed Variations, Martinez Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.d3
A05,"2,248",King's Indian Attack: Wahls Defense,1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 d5
A72,"2,244",Benoni Defense: Classical without 9.O-O,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O
E18,"2,241","Queen's Indian Defense: Classical Variation, Traditional Variation Nimowitsch Line",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 d5
C98,"2,228","Ruy Lopez: Closed Variations, Chigorin Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Nc6
E64,"2,224","King's Indian Defense: Fianchetto Variation, Yugoslav Variation Rare Lines",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5
E09,"2,220","Catalan Opening: Closed Variation, Traditional Variation",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2 b6
A17,"2,217","English Opening: Anglo-Indian Defense, Queens Indian Formation",1.c4 Nf6 2.Nc3 e6 3.Nf3 b6
E61,"2,216",King's Indian Defense: Smyslov Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.Bg5
B07,"2,214",Pirc Defense: Classical Variation,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be2
E73,"2,202","King's Indian Defense: Averbakh Variation, Modern Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6
A05,"2,200",King's Indian Attack: Spassky Variation,1.Nf3 Nf6 2.g3 b5
B58,"2,176",Sicilian Defense: Boleslavsky Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5
C45,"2,174",Scotch Game: Mieses Variation,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6 bxc6 6.e5
D51,"2,171","Queen's Gambit Declined: Modern, Knight Defense",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7
C44,"2,167",Ponziani Opening: Jaenisch Counterattack,1.e4 e5 2.Nf3 Nc6 3.c3 Nf6
E99,"2,158","King's Indian Defense: Orthodox Variation, Classical System Neo-Classsical Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Be3
D30,"2,157",Semi-Slav Defense: Quiet Variation,1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.e3 c6 5.Nbd2 Nbd7
D19,"2,150","Slav Defense: Czech Variation, Classical System Main Line",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O 9.Qe2
D16,"2,143",Slav Defense: Soultanbeieff Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 e6
A01,"2,141",Nimzo-Larsen Attack: Modern Variation,1.b3 e5
E46,"2,140",Nimzo-Indian Defense: Reshevsky Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nge2
C49,"2,134","Four Knights Game: Spanish Variation, Symmetrical Variation",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6
E92,"2,123",King's Indian Defense: Exchange Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.dxe5
C03,"2,120","French Defense: Tarrasch Variation, Morozevich Variation",1.e4 e6 2.d4 d5 3.Nd2 Be7
B20,"2,118",Sicilian Defense: Staunton-Cochrane Variation,1.e4 c5 2.c4
B28,"2,118","Sicilian Defense: O'Kelly Variation, Yerevan System",1.e4 c5 2.Nf3 a6 3.Nc3
E86,"2,112",King's Indian Defense: Saemisch Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.Nge2 c6
E62,"2,112","King's Indian Defense: Fianchetto Variation, Larsen Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c6 7.O-O Bf5
E97,"2,106","King's Indian Defense: Orthodox Variation, Modern System",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Nd2
A52,"2,095",Budapest Defense,1.d4 Nf6 2.c4 e5 3.dxe5 Ng4
E08,"2,088","Catalan Opening: Closed, Qc2 & b3",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.b3
B78,"2,086","Sicilian Defense: Dragon Variation, Yugoslav Attack Old Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Rc8
C61,"2,074",Ruy Lopez: Bird Variation,1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4
D05,"2,072",Colle System,1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3
A19,"2,064","English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation",1.c4 Nf6 2.Nc3 e6 3.e4 c5
C07,"2,062","French Defense: Tarrasch Variation, Chistyakov Defense Modern Line",1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qd6 7.O-O Nf6 8.Nb3 Nc6 9.Nbd4 Nxd4 10.Nxd4 a6
A50,"2,062",Mexican Defense,1.d4 Nf6 2.c4 Nc6
B23,"2,061","Sicilian Defense: Closed Variation, Korchnoi Defense",1.e4 c5 2.Nc3 e6 3.g3 d5
B11,"2,061","Caro-Kann Defense: Two Knights Attack, Mindeno Variation",1.e4 c6 2.Nc3 d5 3.Nf3 Bg4
A91,"2,058",Dutch Defense: Classical Variation,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7
D02,"2,049","Queen Pawn Game: Barry Attack, Gruenfeld Variation",1.d4 Nf6 2.Nf3 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Be2
A11,"2,048","English Opening: Anglo-Indian Defense, Romanishin Variation",1.c4 Nf6 2.Nf3 e6 3.g3 a6
E10,"2,047",Blumenfeld Countergambit: Dus-Chotimursky Variation,1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5 5.Bg5
E93,"2,022","King's Indian Defense: Petrosian Variation, Normal Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 Nbd7
B15,"2,010",Caro-Kann Defense: Tartakower Variation,1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6
E00,"2,000",Kangaroo Defense,1.d4 e6 2.c4 Bb4+
D88,"2,000","Gruenfeld Defense: Exchange Variation, Spassky Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 cxd4 11.cxd4
E51,"2,000","Nimzo-Indian Defense: Normal Variation, Ragozin Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5
E12,"1,995","Queen's Indian Defense: Kasparov-Petrosian Variation, Petrosian Attack",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 Nxd5 7.e3
E94,"1,986","King's Indian Defense: Orthodox Variation, Positional Defense Closed Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.d5
A00,"1,978",Hungarian Opening: Slav Formation,1.g3 d5 2.Bg2 c6
D94,"1,977","Gruenfeld Defense: Three Knights Variation, Burille Variation Reversed Tarrasch",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 c5 6.Be2 cxd4 7.exd4 Nc6 8.O-O O-O
D03,"1,972","Queen Pawn Game: Torre Attack, Gruenfeld Variation Main Line",1.d4 d5 2.Nf3 Nf6 3.Bg5 g6 4.e3 Bg7 5.Nbd2 O-O
B28,"1,972","Sicilian Defense: O'Kelly Variation, Venice System",1.e4 c5 2.Nf3 a6 3.c3
C65,"1,970","Ruy Lopez: Berlin Defense, Beverwijk Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Bc5
C16,"1,960","French Defense: Winawer Variation, Petrosian Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Qd7
A12,"1,959","Reti Opening: Anglo-Slav Variation, Bogoljubow Variation",1.Nf3 d5 2.c4 c6 3.b3 Nf6 4.Bb2
D45,"1,954","Semi-Slav Defense: Stoltz Variation, Shabalov Attack",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Qc2 Bd6 7.g4
E62,"1,953","King's Indian Defense: Fianchetto Variation, Simagin Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O Bg4
B73,"1,952","Sicilian Defense: Dragon Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6 8.O-O
D01,"1,944","Queen Pawn Game: Veresov Attack, Two Knights System",1.d4 d5 2.Nc3 Nf6 3.Bg5 Nbd7 4.Nf3
E42,"1,926","Nimzo-Indian Defense: Huebner Variation, Rubinstein Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Nge2
C73,"1,926","Ruy Lopez: Morphy Defense, Modern Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4
E44,"1,924",Nimzo-Indian Defense: Fischer Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Nge2
C96,"1,919","Ruy Lopez: Closed Variations, Keres Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Nd7
B05,"1,918","Alekhine Defense: Modern, Flohr Variation",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 c6
A80,"1,916","Queen Pawn Game: Veresov Atack, Dutch System",1.d4 d5 2.Nc3 f5
E12,"1,892","Queen's Indian Defense: Kasparov-Petrosian Variation, Kasparov Attack",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 Nxd5 7.Qc2
D63,"1,887","Queen's Gambit Declined: Orthodox Defense, Hennegerger Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 a6
D52,"1,884",Queen's Gambit Declined: Cambridge Springs Defense:  Bogoljubow Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Nd2 Bb4 8.Qc2
B01,"1,878",Scandinavian Defense: Richter Variation,1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.Nf3 g6
A14,"1,878","English Opening: Agincourt Defense, Keres Defense",1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O c5 6.cxd5 Nxd5 7.Nc3 Nc6
D53,"1,875",Queen's Gambit Declined: Miles Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 O-O 6.Qc2
E82,"1,836","King's Indian Defense: Saemisch Variation, Double Fianchetto",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 b6
C43,"1,832","Russian Game: Modern Attack, Center Variation",1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3
B33,"1,828","Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation Novosibirsk Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Bxf6 gxf6 10.Nd5 Bg7
C50,"1,828",Italian Game: Giuoco Pianissimo,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3
D20,"1,828","Queen's Gambit Accepted: Central Variation, McDonnell Defense",1.d4 d5 2.c4 dxc4 3.e4 e5
A28,"1,827","English Opening: King's English Variation, Four Knights Variation Flexible Line",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.d3
B52,"1,823","Sicilian Defense: Canal-Sokolsky attack, Sokolsky Variation",1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4
D21,"1,819",Queen's Gambit Accepted: Gunsberg Defense,1.d4 d5 2.c4 dxc4 3.Nf3 c5
B20,"1,812",Sicilian Defense: Chameleon,1.e4 c5 2.Ne2
D00,"1,811",Queen Pawn Game: Levitsky Attack,1.d4 d5 2.Bg5
C85,"1,807","Ruy Lopez: Closed Variations, Delayed Exchange",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6
A23,"1,806","English Opening: King's English Variation, Two Knights' Variation Keres Variation",1.c4 e5 2.Nc3 Nf6 3.g3 c6
D34,"1,764","Tarrasch Defense: Classical Variation, Advance Variation",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.Bg5 c4
C42,"1,754","Russian Game: Classical Attack, Chigorin Variation Main Line",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.c4 Nb4 9.Be2
E68,"1,752","King's Indian Defense: Fianchetto Variation, Long Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 Re8 9.h3 exd4 10.Nxd4 Nc5 11.Re1 a5
C13,"1,726",French Defense: Alekhine-Chatard Attack,1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4
D15,"1,718",Slav Defense: Alekhine Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e3
C50,"1,708","Italian Game: Giuoco Pianissimo, Canal Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.Nc3 d6 6.Bg5
B81,"1,708","Sicilian Defense: Scheveningen Variation, Delayed Keres Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.g4
E33,"1,705","Nimzo-Indian Defense: Classical Variation, Zurich Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6
A00,"1,704",Polish Opening,1.b4
A84,"1,702",Dutch Defense: Rubinstein Variation,1.d4 f5 2.c4 e6 3.Nc3
E95,"1,694","King's Indian,Orthodox, 7...Nbd7, 8.Re1",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1
A57,"1,689","Benko Gambit: Accepted, Pawn Return Variation",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.b6
C41,"1,686",Philidor Defense: Hanham Variation,1.e4 e5 2.Nf3 d6 3.d4 Nd7
D15,"1,671",Slav Defense: Geller Gambit,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e4
A32,"1,669","English Opening: Symmetrical Variation, Anti-Benoni Variation Spielmann Defense",1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6
B10,"1,668","Caro-Kann Defense: Accelerated Panov Attack, Open Variation",1.e4 c6 2.c4 e5
B01,"1,668",Scandinavian Defense: Panov Transfer,1.e4 d5 2.exd5 Nf6 3.c4 c6
C14,"1,668",French Defense: Classical Variation,1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7
D21,"1,666",Queen's Gambit Accepted: Rosenthal Variation,1.d4 d5 2.c4 dxc4 3.Nf3 e6
C50,"1,664",Italian Game: Hungarian Defense,1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7
A82,"1,663","Dutch Defense: Staunton Gambit, Accepted",1.d4 f5 2.e4 fxe4
A53,"1,659",Old Indian: Czech Variation,1.d4 Nf6 2.c4 d6 3.Nc3 c6 4.Nf3
D83,"1,658","Gruenfeld Defense: Brinckmann Attack, Grünfeld Gambit",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O
E50,"1,645","Nimzo-Indian Defense: 4.e3 e8g8, 5.Nf3, without ...d5",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3
C05,"1,643","French Defense: Tarrasch Variation, Pawn Center Variation",1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4
D20,"1,638","Queen's Gambit Accepted: Central Variation, Alekhine System",1.d4 d5 2.c4 dxc4 3.e4 Nf6
E24,"1,631","Nimzo-Indian Defense: Saemisch Variation, Accelerated",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3
C31,"1,630","King's Gambit: Falkbeer Countergambit, Accepted",1.e4 e5 2.f4 d5 3.exd5
C02,"1,628","French Defense: Advance Variation, Nimzowitsch System",1.e4 e6 2.d4 d5 3.e5 c5 4.Nf3
D00,"1,614",Blackmar-Diemer Gambit,1.d4 d5 2.e4
C88,"1,607","Ruy Lopez: Closed, anti-Marshall 8.a4",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4
A25,"1,600","English Opening: King's English Variation, Hungarian Attack",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Rb1
D46,"1,600",Semi-Slav Defense: Bogoljubow Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Be7
B06,"1,593",Modern Defense: Three Pawns Attack,1.e4 g6 2.d4 Bg7 3.f4
B01,"1,592",Scandinavian Defense: Bronstein Variation,1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 a6
C84,"1,581","Ruy Lopez: Closed Variations, Center Attack",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.d4
A97,"1,580","Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8
D41,"1,576","Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e4
C42,"1,564","Russian Game: Classical Attack, Staunton Variation",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Bd6 7.O-O O-O 8.c4 c6
B11,"1,555","Caro-Kann Defense: Two Knights Attack, Mindeno Variation Exchange Line",1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bxf3
E26,"1,554",Nimzo-Indian Defense: Saemisch Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e3
C57,"1,554","Italian Game: Two Knights Defense, Knight Attack Normal Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5
C66,"1,545","Ruy Lopez: Berlin Defense, Improved Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6
D95,"1,544","Gruenfeld Defense: Three Knights Variation, Vienna Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Qb3
A38,"1,535","English Opening: Symmetrical Variation, Duchamp Variation",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d3
E41,"1,530","Nimzo-Indian Defense: Huebner Variation, Main Line",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nf3 Bxc3+ 7.bxc3 d6
A58,"1,530",Benko Gambit: Fianchetto Variation,1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.Nf3 g6 8.g3
B02,"1,522",Alekhine Defense: Two Pawn Attack,1.e4 Nf6 2.e5 Nd5 3.c4
E50,"1,522","Nimzo-Indian Defense: Normal Variation, Hübner Deferred",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 c5
C00,"1,520",French Defense: Queen's Knight,1.e4 e6 2.Nc3
D05,"1,518",Rubinstein Opening,1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.b3
B01,"1,517",Scandinavian Defense: Classical Variation,1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 Bf5
E55,"1,512","Nimzo-Indian Defense: Normal Variation, Gligoric System Bronstein Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Nbd7
E39,"1,502","Nimzo-Indian Defense: Classical Variation, Berlin Variation Pirc Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O
D42,"1,497","Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bd3
C18,"1,494","French Defense: Winawer Variation, Classical Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Qc7
B17,"1,486","Caro-Kann Defense: Karpov Variation, Modern Variation Kasparov Attack",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Ng3
C22,"1,484",Center Game: Normal Variation,1.e4 e5 2.d4 exd4 3.Qxd4 Nc6
E66,"1,478","King's Indian Defense: Fianchetto Variation, Yugoslav Variation Exchange Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O Nc6 8.dxc5 dxc5
E33,"1,470","Nimzo-Indian Defense: Classical Variation, Milner-Barry Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 d6
D98,"1,458","Gruenfeld Defense: Russian Variation, Smyslov Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4
A59,"1,457","Benko Gambit: Accepted, King Walk Variation",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.e4 Bxf1 8.Kxf1 g6 9.g3 Bg7 10.Kg2 O-O 11.Nf3
A09,"1,455",Reti Opening: Advance Variation,1.Nf3 d5 2.c4 d4
C21,"1,443",Center Game: Accepted,1.e4 e5 2.d4 exd4
E16,"1,431",Queen's Indian Defense: Capablanca Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+
D31,"1,430","Queen's Gambit Declined: Semi-Slav, Abrahams Variation",1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.e3 b5 7.Bd2 a5
D16,"1,420",Slav Defense: Steiner Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bg4
C12,"1,418","French Defense: MacCutcheon Variation, Lasker Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bd2 Bxc3
A43,"1,418",Benoni Defense: Old Benoni,1.d4 c5 2.d5 d6
A46,"1,411","Torre Attack: Classical Defense, Nimzowitsch Variation",1.d4 Nf6 2.Nf3 e6 3.Bg5 h6
D37,"1,401","Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bf4 O-O 6.e3 b6
D97,"1,400","Gruenfeld Defense: Russian Variation, Hungarian Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6
C46,"1,398",Three Knights Opening: Steinitz Defense,1.e4 e5 2.Nf3 Nc6 3.Nc3 g6
C02,"1,397","French Defense: Advance Variation, Milner-Barry Gambit",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.Bd3
B17,"1,397","Caro-Kann Defense: Karpov Variation, Modern Variation",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Ng5
C22,"1,396",Center Game: Paulsen Attack Variation,1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3
D67,"1,386","Queen's Gambit Declined: Orthodox Defense, Main Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O
C50,"1,385",Four Knights Game: Italian Variation,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Nc3 Nf6
B85,"1,380","Sicilian Defense: Scheveningen Variation, Classical Variation Paulsen Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.O-O Qc7 8.f4 Nc6 9.Be3
A00,"1,379",Hungarian Opening: Sicilian Invitation,1.g3 c5
A21,"1,377","English Opening: King's English Variation, Kramnik-Shirov Counter",1.c4 e5 2.Nc3 Bb4
C10,"1,368","French Defense: Rubinstein Variation, Fort Knox Variation",1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bd7 5.Nf3 Bc6
C64,"1,368","Ruy Lopez: Classical Variation, Zukertort Gambit",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.O-O Nf6 5.c3
D24,"1,365",Queen's Gambit Accepted: Bogoljubow Defense,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 a6 5.e4
C89,"1,364","Ruy Lopez: Marshall Attack, Main Line",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4
D26,"1,362","Queen's Gambit Accepted: Classical Defense, Steinitz Variation Development Variation",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O Nc6
D55,"1,362","Queen's Gambit Declined: Anti-Tartakower Variation, Petrosian Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6 Bxf6 8.Rc1 c6 9.Bd3 Nd7 10.O-O dxc4 11.Bxc4
C40,"1,362",Latvian Gambit,1.e4 e5 2.Nf3 f5
E15,"1,360","Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation Nimzowitsch Attack",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qa4+
A21,"1,356",English Opening: King's English Variation,1.c4 e5 2.Nc3 d6 3.Nf3
C45,"1,354","Scotch Game: Scotch Gambit, Advance Variation",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Nf6 5.e5
C00,"1,353",French Defense: Chigorin Variation,1.e4 e6 2.Qe2
E12,"1,353",Queen's Indian Defense: Miles Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Bf4
D55,"1,352",Queen's Gambit Declined: Anti-Tartakower Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6
D60,"1,350","Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Bd3
D94,"1,350",Gruenfeld Defense: Smyslov Defense,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Bd3 c6 7.O-O Bg4
C45,"1,344",Scotch Game: Haxo Gambit,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bc5
C02,"1,341","French Defense: Advance Variation, Lputian Variation",1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 Nh6
B44,"1,340","Sicilian Defense: Paulsen Variation, Modern Line",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 Be7 9.Be2 O-O 10.O-O b6
A28,"1,338","English Opening: King's English Variation, Four Knights Variation Botvinnik Line",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e4
C79,"1,336","Ruy Lopez: Morphy Defense, Steinitz Deferred",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d6
A86,"1,332",Dutch Defense: Leningrad Variation,1.d4 f5 2.c4 Nf6 3.g3 g6
D05,"1,329",Colle System: Traditional Colle,1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3
B89,"1,325",Sicilian Defense: Velimirovic Attack,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6 7.Be3 Be7 8.Qe2
D31,"1,322","Semi-Slav Defense: Marshall Gambit, Main Line",1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 5.Bd2
E15,"1,314","Queen's Indian Defense: Fianchetto Variation, Saemisch Variation",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 c5
E73,"1,312","King's Indian Defense: Averbakh Variation, Geller Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Nbd7
C64,"1,308",Ruy Lopez: Classical Defense:  Benelux Variation,1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.O-O O-O 6.d4 Bb6
A61,"1,300",Benoni Defense: Knight's Tour Variation,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Nd2
A26,"1,299","English Opening: King's English Variation, Botvinnik System",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.e4
B33,"1,290","Sicilian Defense: Lasker-Pelikan Variation, Bird Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 Be6
C78,"1,290","Ruy Lopez: Morphy Defense, Neo-Archangelsk Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Bc5
C67,"1,287","Ruy Lopez: Berlin Defense, Rio de Janeiro Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7
B76,"1,285","Sicilian Defense: Dragon Variation, Yugoslav Attack Panov Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.g4
D44,"1,284",Semi-Slav Defense: Botvinnik System,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5
D36,"1,282","Queen's Gambit Declined: Exchange Variation, Reshevsky Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2
C80,"1,278","Ruy Lopez: Open Variations, Bernstein Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Nbd2
A01,"1,276",Nimzo-Larsen Attack: Classical Variation,1.b3 d5
D00,"1,276",Queen Pawn Game: Mason Attack,1.d4 d5 2.Bf4
B04,"1,276","Alekhine Defense: Modern Variation, Larsen Variation",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 dxe5
E64,"1,271","King's Indian Defense: Fianchetto Variation, Double Fianchetto Attack",1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 d6 5.Bg2 O-O 6.O-O Nbd7 7.Nc3 e5 8.b3
C46,"1,269",Four Knights Game: Italian Variation,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bc4
E49,"1,263","Nimzo-Indian Defense: Normal Variation, Botvinnik System",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.a3 Bxc3+ 7.bxc3
A67,"1,251",Benoni Defense: Taimanov Variation,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Bb5+
A16,"1,246","English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation",1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nb6
C52,"1,246","Italian Game: Evans Gambit, Main Line",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5
D01,"1,244","Queen Pawn Game: Veresov Atack, Richter Variation",1.d4 d5 2.Nc3 Nf6 3.Bg5 Bf5 4.f3
B29,"1,239","Sicilian Defense: Nimzowitsch  Variation, Advance Variation",1.e4 c5 2.Nf3 Nf6 3.e5
C76,"1,238","Ruy Lopez: Morphy Defense, Modern Steinitz Defense Fianchetto Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 g6
B96,"1,234","Sicilian Defense: Najdorf Variation, Neo-Classical Defense",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nc6
A14,"1,233","English Opening: Agincourt Defense, Tarrasch Defense",1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 c5 5.b3 Nc6 6.O-O Be7
C77,"1,230","Ruy Lopez: Morphy Defense, Tarrasch Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Nc3
B00,"1,229",Owen Defense,1.e4 b6
D56,"1,225",Queen's Gambit Declined: Lasker Defense,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4
A40,"1,220",Mikenas Defense,1.d4 Nc6
C55,"1,220","Italian Game: Scotch Gambit, Max Lange Attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5
D07,"1,214","Queen's Gambit Refused: Chigorin Defense, Exchange Variation",1.d4 d5 2.c4 Nc6 3.cxd5 Qxd5
C75,"1,213","Ruy Lopez: Morphy Defense, Modern Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7
C89,"1,210","Ruy Lopez: Marshall Attack, Modern Main Line",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re1 Qh4 14.g3 Qh3
C00,"1,206",French Defense: Steiner Variation,1.e4 e6 2.c4
B61,"1,204","Sicilian Defense: Richter-Rauzer Variation, Modern Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7 7.Qd2
B21,"1,197","Sicilian Defense: Smith-Morra Gambit, Accepted Scheveningen Formation",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 e6
C57,"1,188","Italian Game: Two Knights Defense, Polerio Defense",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5
A83,"1,186",Dutch Defense: Staunton Gambit,1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5
D06,"1,185","Queen's Gambit Refused: Chigorin Defense, Modern Gambit",1.d4 d5 2.c4 Nc6 3.Nc3 Nf6 4.Nf3 dxc4
A80,"1,182",Dutch Defense: Hopton Attack,1.d4 f5 2.Bg5
A54,"1,182",Old Indian Defense: Tartakower-Indian,1.d4 Nf6 2.c4 d6 3.Nf3 Bg4
A28,"1,182","English Opening: King's English Variation, Four Knights Variation Korchnoi Line",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.a3
A92,"1,182",Dutch Defense: Stonewall Variation,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d5
D03,"1,179","Queen Pawn Game: Torre Attack, Gossip Variation",1.d4 d5 2.Nf3 Nf6 3.Bg5 Ne4
B17,"1,175","Caro-Kann Defense: Karpov Variation, Smyslov Variation",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6
E17,"1,172","Queen's Indian Defense: Kasparov-Petrosian Variation, Hedgehog Variation",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 g6
C68,"1,170","Ruy Lopez: Exchange Variation, King's Bishop Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bd6
C18,"1,165","French Defense: Winawer Variation, Retreat  Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Ba5
D97,"1,160","Gruenfeld Defense: Russian Variation, Prins Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Na6
E61,"1,160",King's Indian Defense: Semi-Classical Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.e3 d6 6.Be2
C82,"1,160","Ruy Lopez: Open Variations, St, Petersburg Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Nbd2
C44,"1,158","Scotch Game: Scotch Gambit, Göring Gambit Declined",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 d5
B06,"1,156",Modern Defense: Modern Pterodactyl,1.e4 g6 2.d4 Bg7 3.Nc3 c5
B07,"1,152",Pirc Defense: Bayonet Attack,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be2 Bg7 5.h4
B03,"1,152",Alekhine Defense: Four Pawns Attack,1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4
C49,"1,148","Four Knights Game: Symmetrical, Metger unpin",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7
C55,"1,142",Italian Game: Scotch Gambit,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O
A58,"1,140",Benko Gambit: Zaitsev System,1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.Nc3
A57,"1,138","Benko Gambit: Accepted, Modern Variation",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.e3
A04,"1,137",Zukertort Opening: Black Mustang Defense,1.Nf3 Nc6
A36,"1,134","English Opening: Symmetrical Variation, Botvinnik System Reversed",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 e5
B22,"1,132","Sicilian Defense: Alapin Variation, Stoltz Attack",1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Bc4 Nb6 6.Bb3
A53,"1,131",Old Indian: Czech Variation w/Nc3,1.d4 Nf6 2.c4 d6 3.Nc3 c6
A47,"1,131","Indian Game Defense: Pseudo-Queen's Indian, Marienbad System",1.d4 Nf6 2.Nf3 b6 3.g3 Bb7 4.Bg2 c5
B40,"1,128",Sicilian Defense: Pin Variation,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4
C11,"1,127","French Defense: Classical Variation, Delayed Exchange Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 3.exd5
B79,"1,125","Sicilian Defense: Dragon, Yugoslav attack, 12.h4",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Qa5 11.Bb3 Rfc8 12.h4
B40,"1,124",Sicilian Defense: Kveinis Variation,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Qb6
B04,"1,116","Alekhine Defense: Modern Variation, Larsen-Haakert Variation",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Nc6
B92,"1,115","Sicilian Defense: Najdorf Variation, Opocensky Variation Modern Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O Be6
E12,"1,113","Queen's Indian Defense: Kasparov-Petrosian Variation, Marco Defense",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 Be7
A07,"1,100",King's Indian Attack: Keres Variation,1.Nf3 d5 2.g3 Bg4 3.Bg2 Nd7
E52,"1,097","Nimzo-Indian Defense: Normal Variation, Schlechter Defense",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 b6
B45,"1,095","Sicilian Defense: Four Knights Variation, Exchange Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6
D11,"1,094",Slav Defense: Breyer Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nbd2
D07,"1,089","Queen's Gambit Refused: Chigorin Defense, Janowski Variation",1.d4 d5 2.c4 Nc6 3.Nc3 dxc4 4.Nf3
B03,"1,084","Alekhine Defense: Four pawns attack, 6...Nc6",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 dxe5 6.fxe5 Nc6
A33,"1,072","English Opening: Symmetrical Variation, Anti-Benoni Variation Geller Variation",1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.g3 Qb6
E90,"1,070",King's Indian Defense: Larsen Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be3
C66,"1,068","Ruy Lopez: Berlin Defense, Hedgehog Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 Be7
E42,"1,066","Nimzo-Indian Defense: Huebner Variation, Rubinstein Variation Main Line",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Nge2 cxd4 6.exd4 O-O 7.a3
B28,"1,065","Sicilian Defense: O'Kelly Variation, Normal System",1.e4 c5 2.Nf3 a6 3.d4
D17,"1,065","Slav Defense: Czech Variation, Wiesbaden Variation",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 e6
C60,"1,064",Ruy Lopez: Cozio Defense,1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7
B46,"1,062","Sicilian Defense: Paulsen Variation, Taimanov Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7
B56,"1,061",Sicilian Defense: Kupreichik Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bd7
A13,"1,059","English Opening: Agincourt Defense, Wimpy System",1.c4 e6 2.Nf3 d5 3.b3 Nf6 4.Bb2 c5 5.e3
C86,"1,058","Ruy Lopez: Closed Variations, Worrall Attack Delayed castling line",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 d6
C89,"1,058","Ruy Lopez: Marshall Attack, Modern Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6
C25,"1,054",Vienna Game: Paulsen Variation,1.e4 e5 2.Nc3 Nc6 3.g3
C58,"1,054","Italian Game: Two Knights Defense, Polerio Defense Bishop Check line",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+
E99,"1,050","King's Indian Defense: Orthodox Variation, Classical System Traditional Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5
B83,"1,047","Sicilian Defense: Scheveningen Variation, Modern Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 Nc6 7.O-O Be7 8.Be3 O-O 9.f4 Bd7 10.Nb3
D09,"1,045","Queen's Gambit Refused: Albin Countergambit, Fianchetto Variation",1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.g3
D25,"1,044",Queen's Gambit Accepted: Smyslov Variation,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 g6
B07,"1,038",King Pawn Game: Maroczy Defense,1.e4 d6 2.d4 e5
B00,"1,038","Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation",1.e4 Nc6 2.d4 d5 3.Nc3
E11,"1,027","Queen's Indian Defense: Petrosian Variation, Farago Defense",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Ba6 5.Qc2 Bb7
B03,"1,024","Alekhine Defense: Four Pawns Attack, Main Line",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 dxe5 6.fxe5 Nc6 7.Be3
B09,"1,024","Pirc Defense: Austrian Attack, Kurajica Variation",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Be3
B84,"1,024","Sicilian Defense: Najdorf Variation, Scheveningen Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.O-O Nbd7
B71,"1,020","Sicilian Defense: Dragon Variation, Levenfish Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4
B04,"1,020","Alekhine Defense: Modern Variation, Schmid Variation",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Nb6
A34,"1,016","English Opening: Symmetrical Variation, Rubinstein Variation",1.c4 c5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7
D39,"1,014","Queen's Gambit Declined: Ragozin Defense, Vienna Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4 5.Bg5 dxc4
B28,"1,012","Sicilian Defense: O'Kelly Variation, Maroczy Bind Paulsen Line",1.e4 c5 2.Nf3 a6 3.c4 e6
E04,"1,012","Catalan Opening: Open Defense, Tarrasch Defense",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 c5 5.Nf3 Nc6
C42,"1,010","Russian Game: Classical Attack, Marshall Variation",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Bd6
A00,"1,010","Polish Opening: King's Indian Variation, Sokolsky Attack",1.b4 Nf6 2.Bb2 g6 3.c4 Bg7 4.e3 d6 5.Nf3 O-O 6.d4
E25,"1,008",Nimzo-Indian Defense: Saemisch Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5
B01,"1,007","Scandinavian Defense: Modern Variation, Gipslis Variation",1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.Nf3 Bg4
B73,"1,007","Sicilian Defense: Dragon Variation, Classical Variation Battery Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6 8.O-O O-O 9.Qd2
C69,"1,006","Ruy Lopez: Exchange Variation, Bronstein Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6
A49,994,Zukertort Opening: Grünfeld Reversed,1.Nf3 c5 2.g3 d5 3.Bg2 Nc6 4.d4 e6 5.O-O
D94,993,Gruenfeld Defense: Opocensky Variation,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Bd2
D46,988,Semi-Slav Defense: Romih Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Bb4
C36,984,"King's Gambit: Accepted, Abbazia Defense",1.e4 e5 2.f4 exf4 3.Nf3 d5 4.exd5 Nf6
B72,977,"Sicilian Defense: Dragon Variation, Classical Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6 8.Nb3
B20,975,Sicilian Defense: Wing Gambit,1.e4 c5 2.b4
D20,975,"Queen's Gambit Accepted: Central Variation, Modern Defense",1.d4 d5 2.c4 dxc4 3.e4 Nc6
E00,974,"Kangaroo Defense: Keres Defense, Transpositional Variation",1.d4 e6 2.c4 Bb4+ 3.Nc3
D02,970,"Queen's Gambit Refused: Baltic Defense, Pseudo-Slav",1.d4 d5 2.c4 Bf5 3.Nc3 e6 4.Nf3 c6
C05,968,"French Defense: Tarrasch Variation, Botvinnik Variation",1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 b6
A16,966,"English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation",1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.Nf3
D56,963,"Queen's Gambit Declined: Lasker Defense, Teichmann Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7 9.Qc2
A78,962,"Benoni Defense: Classical Variation, Czerniak Defense",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2 Na6
B08,954,"Pirc Defense: Classical Variation, Quiet System Chigorin Line",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Nc6
A74,954,"Benoni Defense: Classical Variation, Full line",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O a6 10.a4
A13,951,"English Opening: Agincourt Defense, Catalan Defense",1.c4 e6 2.Nf3 d5 3.g3 c5
A12,951,"Reti Opening: Anglo-Slav Variation, Bogoljubow Variation Stonewall Line",1.Nf3 d5 2.c4 c6 3.b3 Nf6 4.Bb2 e6 5.g3 Be7 6.Bg2 O-O 7.O-O
B07,948,Pirc Defense: Kholmov System,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bc4
A95,945,"Dutch Defense: Classical Variation, Stonewall Variation",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d5 7.Nc3 c6
A18,939,"English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation",1.c4 Nf6 2.Nc3 e6 3.e4 d5 4.e5
E73,936,"King's Indian Defense: Averbakh Variation, Flexible Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6
C75,926,"Ruy Lopez: Morphy Defense, Modern Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 Nge7
E17,925,Queen's Indian Defense: Euwe Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.b3
D08,922,"Queen's Gambit Refused: Albin Countergambit, Normal Line",1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3
D28,921,"Queen's Gambit Accepted: Classical Defense, Alekhine System Except Main Line",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5
A50,918,Indian Game: Saemisch-Indian,1.d4 Nf6 2.c4 b6
D10,918,Slav Defense: Winawer Countergambit,1.d4 d5 2.c4 c6 3.Nc3 e5
A59,918,Benko Gambit,1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.e4 Bxf1 8.Kxf1 g6 9.g3
B17,915,"Caro-Kann Defense: Karpov Variation, Modern Main Line",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Ng5 Ngf6 6.Bd3 e6 7.N1f3 Bd6 8.Qe2 h6 9.Ne4 Nxe4 10.Qxe4
E16,912,Queen's Indian Defense: Yates Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5
E40,912,"Nimzo-Indian Defense: Normal Variation, Taimanov Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 Nc6
A30,910,"English Opening: Symmetrical, hedgehog, flexible formation",1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.Rd1 a6 10.b3 Nbd7
A75,909,"Benoni Defense: Classical Variation, Argentine Counterattack",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O a6 10.a4 Bg4
C25,909,Vienna Game: Vienna Gambit,1.e4 e5 2.Nc3 Nc6 3.f4
A02,906,Bird Opening: From Gambit,1.f4 e5
C92,894,"Ruy Lopez: Closed Variations, Keres Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Nd7
A40,891,Polish Defense,1.d4 b5
E28,891,Nimzo-Indian Defense: Saemisch Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O 6.e3
D94,888,Gruenfeld Defense: Makogonov Variation,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.b4
C46,887,Four Knights Game: Gunsberg Variation,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.a3
A92,887,Dutch Defense: Classical Variation,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O
E99,884,"King's Indian Defense: Orthodox Variation, Classical System Benko Attack",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5 11.g4
E29,884,Nimzo-Indian Defense: Saemisch Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O 6.e3 c5 7.Bd3 Nc6
A04,883,Zukertort Opening: Quiet system,1.Nf3 Nf6 2.e3
E16,882,Queen's Indian Defense: Riumin Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7
B02,879,Alekhine Defense: Maroczy Variation,1.e4 Nf6 2.d3
E13,878,Queen's Indian Defense: Kasparov Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.Bg5 h6 6.Bh4 Bb4
A13,878,"English Opening: Agincourt Defense, Kurajica Defense",1.c4 e6 2.Nf3 d5 3.g3 c6
B12,876,"Caro-Kann Defense: Advance Variation, Tal Variation",1.e4 c6 2.d4 d5 3.e5 Bf5 4.h4
A52,871,Budapest Defense: Rubinstein Variation,1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Bf4
C00,870,French Defense: Horwitz Attack,1.e4 e6 2.b3
D50,852,Queen's Gambit Declined: Been-Koomen Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5
D02,848,Queen's Gambit Refused: Baltic Defense,1.d4 d5 2.c4 Bf5
C82,846,"Ruy Lopez: Open Variations, Italian Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5
C26,845,"Bishop's Opening: Vienna Hybrid, Spielmann Attack",1.e4 e5 2.Bc4 Nf6 3.d3 Bc5 4.Nc3
C18,844,"French Defense: Winawer Variation, Retreat  Variation Armenian Line",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Ba5 6.b4 cxd4
A12,843,"Reti Opening: Anglo-Slav Variation, New York System",1.Nf3 d5 2.c4 c6 3.b3 Nf6 4.Bb2 Bf5
C47,842,"Four Knights Game: Scotch Variation, Belgrade Gambit",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nd5
C22,842,Center Game: Berger Variation,1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 Nf6
D04,841,"Queen Pawn Game: Colle System, Anti-Colle",1.d4 d5 2.Nf3 Nf6 3.e3 Bf5
E94,838,"King's Indian Defense: Orthodox Variation, Donner Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O c6
A61,836,Benoni Defense: Uhlmann Variation,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bg5
C78,834,"Ruy Lopez: Closed Variations, Morphy Attack",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Nc3
C51,834,"Italian Game: Evans Gambit, MacDonnell Defense Main Line",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5 6.d4 exd4 7.O-O d6 8.cxd4 Bb6
C15,832,"French Defense: Winawer Variation, Alekhine Gambit Kan Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Nge2 dxe4 5.a3 Bxc3+ 6.Nxc3 Nc6
D83,825,"Gruenfeld Defense: Brinckmann Attack, Grünfeld Gambit Capablanca Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Rc1
C45,824,Scotch Game: Potter Variation,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3
B43,822,"Sicilian Defense: Kan Variation, Wing Attack Fianchetto Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5 6.g3
D17,816,"Slav Defense: Czech Variation, Carlsbad Variation",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 Nbd7 7.Nxc4 Qc7 8.g3 e5
C93,816,"Ruy Lopez: Closed Variations, Smyslov-Breyer-Zaitsev Hybrid",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Re8 10.d4 Bb7 11.Nbd2 Bf8 12.a3 h6
E45,812,"Nimzo-Indian Defense: Normal Variation, Bronstein (Byrne) Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Nge2 Ba6
D70,812,Neo-Grünfeld Defense: Goglidze Attack,1.d4 Nf6 2.c4 g6 3.f3 d5
E05,810,"Catalan Opening: Open Defense, Classical Line",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Be7
B90,806,"Sicilian Defense: Najdorf Variation, English Attack Anti-English",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 Ng4
C86,797,"Ruy Lopez: Closed Variations, Worrall Attack Caslting line",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 O-O
C36,794,King's Gambit Accepted: Modern Defense,1.e4 e5 2.f4 exf4 3.Nf3 d5
C00,792,French Defense: Wing Gambit,1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4
E72,789,"King's Indian Defense: Normal Variation, Deferred Fianchetto",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.g3
A01,788,Nimzo-Larsen Attack: Indian Variation,1.b3 Nf6
C92,788,"Ruy Lopez: Closed Variations, Zaitsev System",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Re8
D20,788,"Queen's Gambit Accepted: Central Variation, Rubinstein Defense",1.d4 d5 2.c4 dxc4 3.e4 c5
B23,786,"Sicilian Defense: Grand Prix Attack, Schofman Variation",1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bc4 e6 6.f5
C83,786,"Ruy Lopez: Open Variations, Classical Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Be7
D06,784,Queen's Gambit Refused: Marshall Defense,1.d4 d5 2.c4 Nf6
E11,784,Bogo-Indian Defense: Exchange Variation,1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Bxd2+
D35,784,"Queen's Gambit Declined: Exchange Variation, Saemisch Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Nf3 Nbd7 6.Bf4
E77,784,King's Indian Defense: Four Pawns Attack,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2
D10,781,"Slav Defense: Slav Gambit, Alekhine Attack",1.d4 d5 2.c4 c6 3.Nc3 dxc4 4.e4
A57,780,"Benko Gambit: Accepted, Dlugy Variation",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.f3
A09,780,Reti Opening: Reti Gambit,1.Nf3 d5 2.c4 dxc4
D86,780,"Gruenfeld Defense: Exchange Variation, Simagin's Improved Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 Nc6
C92,780,"Ruy Lopez: Closed Variations, Kholmov Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Be6
B82,774,"Sicilian Defense: Scheveningen Variation, Tal Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.f4 Nc6 7.Be3 Be7 8.Qf3
B97,773,"Sicilian Defense: Najdorf Variation, Poisoned Pawn Accepted",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 Qxb2 9.Rb1 Qa3
A46,773,Indian Game: Polish Variation,1.d4 Nf6 2.Nf3 b5
A07,772,King's Indian Attack: Pachman System,1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.O-O e5 5.d3 Ne7
E66,769,"King's Indian Defense: Fianchetto Variation, Yugoslav Variation Advance Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O Nc6 8.d5
E90,768,King's Indian Defense: Zinnowitz Variation,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Bg5
E10,765,Indian Game: Dzindzi-Indian Defense,1.d4 Nf6 2.c4 e6 3.Nf3 a6
C41,764,Philidor Defense: Larsen Variation,1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 g6
E75,764,"King's Indian,Averbakh, Main line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 e6
C11,762,"French Defense: Classical Variation, Burn Variation Main Line",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Bxf6 Bxf6 7.Nf3 O-O
A52,758,Budapest Defense: Adler Variation,1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3
B21,756,Sicilian Defense: Morphy Gambit,1.e4 c5 2.d4 cxd4 3.Nf3
B06,753,"Pterodactyl Defense: Eastern, Benoni",1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.d5
E78,753,"King's Indian Defense: Four Pawns Attack, Fluid Attack",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.Nf3
A76,751,"Benoni Defense: Classical Variation, Czerniak Defense",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8
B07,750,Pirc Defense: 150 Attack,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.Qd2
C53,750,"Italian Game: Classical Variation, Giuoco Pianissimo Main line",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 a6 6.Bb3 Ba7 7.h3 O-O 8.O-O d6 9.Re1
C77,749,"Ruy Lopez: Morphy Defense, Bayreuth Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Bxc6
D37,746,"Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bf4 O-O 6.e3 c6
C70,744,"Ruy Lopez: Morphy Defense, Cozio Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nge7
E17,739,Queen's Indian Defense: Opocensky Variation,1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 Ne4 7.Bd2
B27,739,Sicilian Defense: Katalimov Variation,1.e4 c5 2.Nf3 b6
E36,731,"Nimzo-Indian Defense: Classical Variation, Noa Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3
B25,730,"Sicilian Defense: Closed Variation, Botvinnik Defense I",1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5
C48,726,"Four Knights Game: Spanish Variation, Classical Variation",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bc5
C12,725,"French Defense: MacCutcheon Variation, Lasker Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bd2 Bxc3 7.bxc3 Ne4 8.Qg4 g6
D12,724,"Slav Defense: Exchange Variation, Schallopp Variation",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bf5 5.cxd5 cxd5 6.Nc3
A43,723,Benoni Defense: Franco-Sicilian Defense,1.d4 c5 2.d5 e6 3.e4
D17,717,"Slav Defense: Czech Variation, Bled Attack",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Nh4
C00,714,"French Defense: Horwitz Attack, Papa-Ticulat Gambit",1.e4 e6 2.b3 d5 3.Bb2
C56,713,"Italian Game: Scotch Gambit, Anderssen Attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Nxe4 6.Re1 d5 7.Bxd5 Qxd5 8.Nc3
C51,711,"Italian Game: Evans Gambit, MacDonnell Defense",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5
C30,710,King's Gambit Declined: Classical Variation,1.e4 e5 2.f4 Bc5
C33,710,King's Gambit Accepted: Bishop's Gambit,1.e4 e5 2.f4 exf4 3.Bc4
B07,706,"Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.h3
D75,702,Neo-Gruenfeld Defense: Delayed Exchange Variation,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O c5 8.Nc3
B01,700,Scandinavian Defense: Portuguese Variation,1.e4 d5 2.exd5 Nf6 3.d4 Bg4
B42,698,"Sicilian Defense: Kan Variation, Swiss Cheese Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6
A96,698,"Dutch Defense: Classical Variation, Buenos Aires Variation",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 a5
C53,696,"Italian Game: Classical Variation, Closed Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Qe7
D34,696,"Tarrasch Defense: Classical Variation, Endgame Variation",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.Bg5 Be6
C42,694,Russian Game: French Attack,1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d3
A21,692,"English Opening: King's English Variation, Troger Defense",1.c4 e5 2.Nc3 d6 3.g3 Be6 4.Bg2 Nc6
C34,686,"King's Gambit: Accepted, Fischer Defense",1.e4 e5 2.f4 exf4 3.Nf3 d6
D59,685,"Queen's Gambit Declined: Tartakower Defense, Makogonov Exchange Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.cxd5 Nxd5
B02,684,Alekhine Defense: Saemisch Attack,1.e4 Nf6 2.e5 Nd5 3.Nc3
C81,683,"Ruy Lopez: Open Variations, Howell Attack",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Qe2
D64,678,Queen's Gambit Declined: Orthodox Defense:  Rubinstein attack (with Rc1),1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Qc2
B07,676,Rat Defense: Harmonist,1.e4 d6 2.f4
E96,674,"King's Indian Defense: Orthodox Variation, Positional Defense Main Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1 c6 9.Bf1 a5
A04,672,Zukertort Opening: Lisitsyn Gambit,1.Nf3 f5 2.e4
C19,671,"French Defense: Winawer Variation, Advance Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.a4
D78,669,"Neo-Gruenfeld Defense: Classical Variation, Polgar Variation",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O Nc6
B01,666,Scandinavian Defense: Icelandic-Palme Gambit,1.e4 d5 2.exd5 Nf6 3.c4 e6
D48,666,"Semi-Slav Defense: Meran Variation, Reynolds' Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.d5
C15,664,"French Defense: Winawer Variation, Fingerslip Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd2
A05,662,King's Indian Attack: Smyslov Variation,1.Nf3 Nf6 2.g3 g6 3.b4
D48,659,"Semi-Slav Defense: Meran Variation, Old  Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5
E73,658,King's Indian Defense: Semi-Averbakh System,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Be3
B29,650,"Sicilian Defense: Nimzowitsch  Variation, Main Line",1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 e6 5.Nxd5 exd5 6.d4 Nc6
C42,646,Russian Game: Kaufmann Attack,1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.c4
B02,644,"Alekhine Defense: Two Pawn Attack, Lasker Variation",1.e4 Nf6 2.e5 Nd5 3.c4 Nb6 4.c5
A20,644,"English Opening: King's English Variation, Nimzowitsch Variation",1.c4 e5 2.Nf3
D29,643,"Queen's Gambit Accepted: Classical Defense, Alekhine System Main Line",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Bb7
D33,642,Tarrasch Defense: Swedish Variation,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 c4
A93,638,"Dutch Defense: Classical Variation, Stonewall Variation Botvinnik Variation",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d5 7.b3
E72,636,King's Indian Defense: Pomar System,1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.g3 O-O 6.Bg2 e5 7.Nge2
E25,627,"Nimzo-Indian Defense: Saemisch Variation, Keres Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 Nxd5 8.dxc5
C69,622,"Ruy Lopez: Exchange Variation, Alapin Gambit",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 h5
A04,622,Zukertort Opening: Queenside Fianchetto Variation,1.Nf3 b6
A99,616,"Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation Modern Main Line",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8 8.b3
C73,615,"Ruy Lopez: Morphy Defense, Modern Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4 f6
A45,614,Indian Game: Reversed Chigorin Defense,1.d4 Nf6 2.Nc3 c5
D81,614,"Gruenfeld Defense: Russian Variation, Accelerated Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Qb3
D97,612,"Gruenfeld Defense: Russian Variation, Byrne (Simagin) Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Nc6
A15,612,"English Opening: Anglo-Indian Defense, Slav Formation",1.c4 Nf6 2.Nf3 g6 3.g3 c6
D51,600,Queen's Gambit Declined: Westphalian Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 Bb4 6.Nf3 c5
E20,598,Nimzo-Indian Defense: Romanishin Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.g3 O-O 6.Bg2
C42,597,"Russian Game: Classical Attack, Chigorin Variation",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1
A12,596,"Reti Opening: Anglo-Slav Variation, London Defensive System",1.Nf3 d5 2.c4 c6 3.b3 Nf6 4.g3 Bf5
B98,594,"Sicilian Defense: Najdorf Variation, Browne Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 h6 9.Bh4 Qc7
D23,590,Queen's Gambit Accepted: Mannheim Variation,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Qa4+
A12,590,"Reti Opening: Anglo-Slav Variation, Torre System",1.Nf3 d5 2.c4 c6 3.b3 Nf6 4.g3 Bg4
A69,588,"Benoni Defense: Four Pawns Attack, Main Line",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3 O-O 9.Be2 Re8
E53,588,"Nimzo-Indian Defense: Normal Variation, Gligoric System",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nbd7
A45,585,Trompowsky Attack: Edge Variation,1.d4 Nf6 2.Bg5 Ne4 3.Bh4
D52,584,Queen's Gambit Declined: Cambridge Springs Defense:  7.cd,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.cxd5
C70,582,"Ruy Lopez: Morphy Defense, Caro Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5
A41,582,Modern Defense: Rossolimo Variation,1.e4 g6 2.d4 Bg7 3.Nf3 d6 4.c4 Bg4
D30,579,Queen's Gambit Declined: Hastings Variation,1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5 h6 5.Bxf6 Qxf6 6.Nc3 c6 7.Qb3
C21,578,Danish Gambit,1.e4 e5 2.d4 exd4 3.c3
B06,576,Modern Defense: Gurgenidze Defense,1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.f4 d5 5.e5 h5
B13,576,"Caro-Kann Defense: Panov Attack, Modern Defense Carlsbad Line",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Bg5 e6
D49,575,"Semi-Slav Defense: Meran Variation, Blumenfeld Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5
D54,574,Queen's Gambit Declined: Neo-Orthodox Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Rc1
C30,570,"King's Gambit: Declined, Classical Variation",1.e4 e5 2.f4 Bc5 3.Nf3 d6 4.c3
C58,570,Italian Game: Two Knights Defense,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Be2
A00,568,Van't Kruijs Opening,1000
B07,568,"Lion Defense: Anti-Philidor, Lion's Cave",1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7 4.f4 e5
B72,567,"Sicilian Defense: Dragon, Classical, Amsterdam Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.Qd2
D72,563,"Neo-Gruenfeld Defense: Exchange Variation with 6,e4",1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.cxd5 Nxd5 6.e4 Nb6 7.Ne2
C59,561,"Italian Game: Two Knights Defense, Polerio Defense Suhle Defense",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Be2 h6
B00,560,"Nimzowitsch Defense: Scandinavian Variation, Advance Variation",1.e4 Nc6 2.d4 d5 3.e5
B12,558,"Caro-Kann Defense: Advance Variation, Van der Wiel Attack Dreyev Defense",1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 Qb6
A46,556,Indian Game: Czech-Indian,1.d4 Nf6 2.Nf3 c6
C63,553,"Ruy Lopez: Schliemann Defense, Tartakower Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6
D32,552,Tarrasch Defense: Schara Gambit,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 cxd4
C35,552,"King's Gambit: Accepted, Cunningham Defense",1.e4 e5 2.f4 exf4 3.Nf3 Be7
C71,546,"Ruy Lopez: Morphy Defense, Modern Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c4
D47,539,"Semi-Slav Defense: Meran Variation, Wade Variation Larsen Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7 9.e4 b4 10.Na4 c5 11.e5 Nd5
C12,538,"French Defense: MacCutcheon Variation, Exchange Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.exd5
D68,538,"Queen's Gambit Declined: Orthodox Defense, Classical Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5
B62,537,"Sicilian Defense: Richter-Rauzer Variation, Vitolins Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Bb5
A00,536,Mieses Opening,1.d3
B21,536,"Sicilian Defense: Smith-Morra Gambit, Declined Push Variation",1.e4 c5 2.d4 cxd4 3.c3 d3
B21,534,"Sicilian Defense: Smith-Morra Gambit, Accepted Paulsen Formation",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6
D16,534,"Queen's Gambit Declined: Slav,Smyslov Variation",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Na6 6.e4 Bg4
E79,534,"King's Indian Defense: Four Pawns Attack, Exchange Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.Nf3 cxd4 8.Nxd4 Nc6 9.Be3
D70,532,Neo-Grünfeld Defense: Non- or Delayed Fianchetto,1.d4 Nf6 2.c4 g6 3.Nf3 d5
D37,528,"Queen's Gambit Declined: Harrwitz Attack, Main Line Old Main Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bf4 O-O 6.e3 c5 7.dxc5 Bxc5 8.Qc2 Nc6 9.a3 Qa5 10.Rd1
A12,522,"Reti Opening: Anglo-Slav Variation, Capablanca Variation",1.Nf3 d5 2.c4 c6 3.b3 Nf6 4.Bb2 Bg4
C41,520,"Philidor Defense: Hanham Variation, Krause Variation",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.O-O
B96,518,"Sicilian Defense: Najdorf Variation, Polugayevsky  Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5
D15,515,Slav Defense: Geller Gambit,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e4 b5 6.e5
C24,514,Bishop's Opening: Ponziani Gambit,1.e4 e5 2.Bc4 Nf6 3.d4
C41,514,Philidor Defense: Nimzowitsch Variation,1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.dxe5
B25,513,"Sicilian Defense: Closed Variation, Botvinnik Defense II",1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Nge2 e5
D06,513,"Queen's Gambit Refused: Chigorin Defense, Lazard Gambit",1.d4 d5 2.c4 Nc6 3.Nf3 e5
C51,513,"Italian Game: Evans Gambit, Declined",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bb6
D44,510,"Semi-Slav Defense: Botvinnik System, Lilienthal Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 hxg5 10.Bxg5 Nbd7 11.g3
E17,510,"Queen's Indian Defense: Classical Variation, Tiviakov Defense",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Na6
B80,509,"Sicilian Defense: Scheveningen Variation, English Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.Qd2
A43,508,"Benoni Defense: Old Benoni Defense, Clarendon Court Variation",1.d4 c5 2.d5 f5
C25,507,"Vienna Game: Vienna Gambit, Steinitz Gambit Knight Variation",1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3
E39,506,"Nimzo-Indian Defense: Classical Variation, Berlin Variation Macieja System",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.a3 Bxc5 7.Nf3 b6 8.Bf4
C48,502,"Four Knights Game: Spanish Variation, Rubinstein Variation Accepted",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4 5.Nxd4
B12,500,"Caro-Kann Defense: Advance Variation, Bronstein Variation",1.e4 c6 2.d4 d5 3.e5 Bf5 4.Ne2
A40,498,Queen Pawn Game: Queen Fianchetto,1.d4 b6
C40,498,Elephant Gambit,1.e4 e5 2.Nf3 d5
A13,498,"English Opening: Anglo-Indian Defense, Romanishin Gambit",1.c4 Nf6 2.Nf3 e6 3.g3 a6 4.Bg2 b5
C41,496,"Philidor Defense: Hanham Variation, Schlechter Variation",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.Nc3
B40,495,Sicilian Defense: Smith-Morra Gambit Deferred,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.c3
A19,494,"English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation Nei Gambit",1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.e5 Ng8
D38,489,"Queen's Gambit Declined: Ragozin Defense, Alekhine Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4 5.Qa4
B88,489,"Sicilian Defense: Sozin, Fischer Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6 7.Bb3 Be7 8.Be3 O-O 9.f4
B17,488,"Caro-Kann Defense: Karpov Variation, Smyslov Variation Main Line",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6 8.Bb3
C54,488,"Italian Game: Giuoco Piano, Greco's attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3
D27,488,Queen's Gambit Accepted: Furman Variation,1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.dxc5 Bxc5
D16,487,Slav Defense: Smyslov Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Na6
A16,486,"English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation",1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nxc3
D00,486,Queen Pawn Game: Steinitz Countergambit,1.d4 d5 2.Bf4 c5
D47,484,"Semi-Slav Defense: Meran Variation, Lundin Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 b4
B29,484,"Sicilian Defense: Nimzowitsch  Variation, Exchange Variation",1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 Nxc3
B06,483,"Pterodactyl Defense: Sicilian, Rhamporhynchus",1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.dxc5
A06,482,Zukertort Opening: Old Indian Attack,1.Nf3 d5 2.d3
B06,481,"Pterodactyl Defense: Western, Rhamporhynchus",1.e4 g6 2.d4 Bg7 3.Nf3 c5 4.dxc5 Qa5+
C33,480,"King's Gambit: Accepted, Bishop's Gambit Bogoljubow Variation",1.e4 e5 2.f4 exf4 3.Bc4 Nf6 4.Nc3
A51,479,Budapest Defense: Fajarowicz Variation,1.d4 Nf6 2.c4 e5 3.dxe5 Ne4
D57,474,"Queen's Gambit Declined: Lasker Defense, Main Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7 9.cxd5 Nxc3 10.bxc3
E22,472,Nimzo-Indian Defense: Spielmann Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3
C15,470,"French Defense: Winawer Variation, Alekhine Gambit Accepted",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 dxe4 5.a3 Bxc3+
C15,470,"French Defense: Winawer Variation, Alekhine Gambit Accepted",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Nge2 dxe4 5.a3 Bxc3+
C24,470,Bishop's Opening: Urusov Gambit,1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3
A48,469,"Torre Attack: Fianchetto Defense, Euwe Variation",1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 c5
C00,467,French Defense: Schlechter Variation,1.e4 e6 2.d4 d5 3.Bd3
E81,465,"King's Indian Defense: Saemisch Variation, Byrne Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c6 7.Bd3 a6
C33,462,"King's Gambit: Accepted, Bishop's Gambit Bogoljubow Defense",1.e4 e5 2.f4 exf4 3.Bc4 Nf6 4.Nc3 c6
E04,461,"Catalan Opening: Open Defense, Modern Sharp Variation",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Nc6 6.Qa4 Bb4+
C53,460,Italian Game: Bird's Attack,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.b4
B01,457,Scandinavian Defense: Lasker Variation,1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 Bg4 6.h3
A53,456,"Old Indian Defense: Janowski Variation, Fianchetto Variation",1.d4 Nf6 2.c4 d6 3.Nc3 Bf5 4.Nf3
D52,454,Queen's Gambit Declined: Cambridge Springs Defense:  Yugoslav Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.cxd5 Nxd5
A24,453,"English Opening: King's English Variation, Two Knights' Variation Fianchetto Lines",1.c4 e5 2.Nc3 Nf6 3.g3 g6
B56,453,Sicilian Defense: Venice Attack,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Bb5+
B12,452,Caro-Kann Defense: Goldman Variation,1.e4 c6 2.Nc3 d5 3.Qf3
C63,452,"Ruy Lopez: Schliemann Defense, Schönemann Attack",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d4
C44,450,"King Pawn Game: Tayler Opening, Inverted Hanham",1.e4 e5 2.Nf3 Nc6 3.Be2 Nf6 4.d3 d5 5.Nbd2
D97,450,"Gruenfeld Defense: Russian Variation, Szabo (Boleslavsky)",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 c6
C74,448,"Ruy Lopez: Morphy Defense, Modern Steinitz Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 f5 6.exf5 Bxf5 7.O-O
D06,447,Queen's Gambit Refused: Austrian Defense,1.d4 d5 2.c4 c5
C42,442,Russian Game: Urusov Gambit,1.e4 e5 2.Nf3 Nf6 3.Bc4
C96,442,"Ruy Lopez: Closed Variations, Borisenko  Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Nc6
B42,442,"Sicilian Defense: Kan, Gipslis Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O d6 7.c4 g6
D89,441,"Gruenfeld Defense: Exchange Variation, Spassky Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 cxd4 11.cxd4 Bg4 12.f3 Na5 13.Bd3 Be6
A80,441,Dutch Defense: Blackmar's Second Gambit,1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.f3
E17,441,"Queen's Indian Defense: Fianchetto Variation, Kramnik Variation",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Re1
C28,438,"Bishop's Opening: Vienna Hybrid, Hromadka Variation",1.e4 e5 2.Bc4 Nf6 3.d3 Nc6 4.Nc3 Bb4 5.Ne2
C45,438,Scotch Game: Malaniuk Variation,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bb4+
D69,438,"Queen's Gambit Declined: Orthodox Defense, Classical Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5 13.dxe5 Nxe5 14.Nxe5 Qxe5
B51,436,"Sicilian Defense: Canal Attack, Haag Gambit",1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c3 Nf6 7.d4
C43,430,"Russian Game: Modern Attack, Center Attack",1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.e5 Ne4 5.Qxd4
A63,428,"Benoni Defense: Fianchetto Variation, Hastings Defense",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 9.O-O Nbd7
A12,428,"Reti Opening: Anglo-Slav Variation, Bled Variation",1.Nf3 d5 2.c4 c6 3.b3 Nf6 4.Bb2 g6
C31,426,"King's Gambit: Falkbeer Countergambit, Nimzowitsch-Marshall Countergambit",1.e4 e5 2.f4 d5 3.exd5 c6
C55,426,Italian Game: Deutz Gambit,1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O Nf6 5.d4
D95,424,Gruenfeld Defense: Botvinnik Variation,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Qb3 e6
B03,422,"Alekhine Defense: Four Pawns Attack, Trifunovic Variation",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 Bf5
C11,420,"French Defense: Classical Variation, Swiss Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bd3
A92,420,Dutch Defense: Alekhine Variation,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O Ne4
D89,419,"Gruenfeld Defense: Exchange Variation, Sokolsky Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 cxd4 11.cxd4 Bg4 12.f3 Na5 13.Bd3 Be6 14.d5
B77,418,"Sicilian Defense: Dragon Variation, Yugoslav Attack Sosonko Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Nd7
D17,417,"Slav Defense: Czech Variation, Wiesbaden Variation Sharp line",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 e6 7.f3 Bb4 8.e4
E15,417,"Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation Timman's Line",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qb3
E37,417,"Nimzo-Indian Defense: Classical Variation, Noa Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 Ne4 7.Qc2
E20,415,"Nimzo-Indian Defense: Romanishin Variation, English Hybrid",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.g3 O-O 6.Bg2 cxd4 7.Nxd4 d5 8.cxd5 Nxd5
B09,414,"Pirc Defense: Austrian Attack, Unzicker Attack",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5
E00,414,Indian Game: Seirawan Attack,1.d4 Nf6 2.c4 e6 3.Bg5
C44,410,"Scotch Game: Göring Gambit, Double Pawn Sacrifice",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 dxc3 5.Bc4
E83,410,"King's Indian,Saemisch, Ruban Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 Rb8
A90,409,Dutch Defense: Nimzo-Dutch Variation,1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Bb4+
B15,407,Caro-Kann Defense: Forgacs Variation,1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4
D01,406,"Queen Pawn Game: Veresov Attack, Two Knights System Gruenfeld Defense",1.d4 d5 2.Nc3 Nf6 3.Bg5 Nbd7 4.Nf3 g6
A45,402,Trompowsky Attack: Raptor Variation,1.d4 Nf6 2.Bg5 Ne4 3.h4
C42,400,Russian Game: Millenium Attack,1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Bd3
C25,399,Vienna Game: Anderssen Defense,1.e4 e5 2.Nc3 Bc5
B32,399,Sicilian Defense: Nimzo-American Variation,1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 d5
A10,398,English Opening: Anglo-Lithuanian Variation,1.c4 Nc6
D50,398,Queen's Gambit Declined: Pseudo-Tarrasch Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5 5.cxd5
D30,397,Queen's Gambit Declined: Capablanca,1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5 h6
C78,396,Ruy Lopez: Morphy Defense,1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 d6
B01,396,Scandinavian Defense: Schiller-Pytel Variation,1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 c6
B00,395,"Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation Vehre Variation",1.e4 Nc6 2.d4 d5 3.Nc3 Nf6
C68,394,"Ruy Lopez: Exchange, Alekhine Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.d4 exd4 6.Qxd4 Qxd4 7.Nxd4 Bd7
C12,394,"French Defense: MacCutcheon Variation, Wolf Gambit",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.Nge2
A15,394,"English Opening: Anglo-Indian Defense, Scandinavian Defense",1.c4 Nf6 2.Nf3 d5
B40,393,Sicilian Defense: Wing Gambit Deferred,1.e4 c5 2.Nf3 e6 3.b4
A60,390,"Benoni Defense: Modern Variation, Snake Variation",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 Bd6
B00,390,Nimzowitsch Defense: Mikenas Variation,1.e4 Nc6 2.d4 d6
A45,390,Trompowsky Attack: Poisoned Pawn Variation,1.d4 Nf6 2.Bg5 c5 3.d5 Qb6 4.Nc3
C44,388,King Pawn Game: Tayler Opening,1.e4 e5 2.Nf3 Nc6 3.Be2
C77,387,"Ruy Lopez: Morphy Defense, Duras Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 d6 6.c4
A12,386,"Reti Opening: Anglo-Slav Variation, Bogoljubow Variation II",1.Nf3 d5 2.c4 c6 3.b3 Bg4
C70,384,"Ruy Lopez: Morphy Defense, Norwegian Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5
E21,384,"Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation Modern Line",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 b6 5.Bg5 Bb7 6.Nd2
B06,382,Modern Defense: Bishop Attack,1.e4 g6 2.d4 Bg7 3.Bc4
C49,382,Four Knights Game: Spanish Variation,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 Bxc3
B00,381,St. George Defense: Polish Variation,1.e4 a6 2.d4 b5 3.Nf3 Bb7 4.Bd3 e6
C02,381,"French Defense: Advance Variation, Ruisdonk Gambit",1.e4 e6 2.d4 d5 3.e5 c5 4.Nf3 cxd4 5.Bd3
A00,379,Hungarian Opening: Dutch Defense,1.g3 f5
B60,379,"Sicilian Defense: Richter-Rauzer Variation, Dragon Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 g6
B28,378,"Sicilian Defense: O'Kelly Variation, Maroczy Bind Robatsch Line",1.e4 c5 2.Nf3 a6 3.c4 d6
B40,377,"Sicilian Defense: Pin Variation, Koch Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.e5
B63,377,"Sicilian Defense: Richter-Rauzer Variation, Ivanov Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Qb6
C74,376,"Ruy Lopez: Morphy Defense, Modern Steinitz Defense Siesta Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 f5
C60,375,Ruy Lopez: Alapin Defense,1.e4 e5 2.Nf3 Nc6 3.Bb5 Bb4
B25,374,"Sicilian Defense: Closed Variation, Botvinnik Defense I Edge Variation",1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5 7.Nh3 Nge7
A00,372,Anderssen Opening,1.a3
A98,372,"Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation Alatortsev-Lisitsyn Line",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8 8.Qc2
A03,369,Bird Opening: Lasker Variation,1.f4 d5 2.Nf3 Nf6 3.e3 c5
E53,369,"Nimzo-Indian Defense: Normal Variation, Gligoric System Keres Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O b6
B00,368,"Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation",1.e4 Nc6 2.d4 e5 3.d5
B03,367,Alekhine Defense: Balogh Variation,1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Bc4
A57,366,"Benko Gambit: Declined, Quiet Line",1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nd2
C95,366,"Ruy Lopez: Closed Variations, Breyer Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 c5
C13,364,"French Defense: Alekhine-Chatard Attack, Maroczy Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 a6
D57,362,"Queen's Gambit Declined: Tartakower Variation, Exchange Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.cxd5 exd5
D31,361,Queen's Gambit Declined: Janowski Variation,1.d4 d5 2.c4 e6 3.Nc3 a6
B66,357,"Sicilian Defense: Richter-Rauzer Variation, Classical Variation Kantscher Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O Nxd4 9.Qxd4 a6 10.f4 b5
C55,356,"Italian Game: Scotch Gambit, Janowski Defense",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O d6
E26,356,"Nimzo-Indian Defense: Saemisch Variation, O'Kelly Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e3 b6
C00,354,French Defense: La Bourdonnais Variation,1.e4 e6 2.f4
A57,351,"Benko Gambit: Declined, Sosonko Variation",1.d4 Nf6 2.c4 c5 3.d5 b5 4.a4
C92,351,"Ruy Lopez: Closed Variations, Keres Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 a5
B74,350,"Sicilian Defense: Dragon Variation, Classical Variation Tartakower Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6 8.O-O O-O 9.Nb3 Be6 10.f4 Qc8
E02,350,Catalan Opening: Open Defense,1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+
C64,349,"Ruy Lopez: Classical Variation, Modern Main Line",1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.O-O Nf6 5.c3 O-O 6.d4 Bb6 7.Bg5
D34,349,"Tarrasch Defense: Classical Variation, Reti Variation",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.dxc5 Bxc5 10.Na4
A48,348,"Queen Pawn Game: Colle System, Gruenfeld Formation",1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Bd3 d5
C53,348,"Italian Game: Classical Variation, Center Holding Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Qe7 5.d4 Bb6
C44,344,Scotch Game: Benima Defense,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Be7
C34,344,"King's Gambit: Accepted, Schallop Defense",1.e4 e5 2.f4 exf4 3.Nf3 Nf6
C31,344,"King's Gambit: Falkbeer Countergambit, Staunton Line",1.e4 e5 2.f4 d5 3.exd5 e4
D63,342,"Queen's Gambit Declined: Orthodox Defense:  Swiss, Karlsbad Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 a6 8.cxd5
B20,340,Sicilian Defense: Mengarini Variation,1.e4 c5 2.a3
B06,339,"Modern Defense: Lizard Defense, Mittenberger Gambit",1.e4 g6 2.d4 Bg7 3.Nc3 d5
D00,338,Queen Pawn Game: Stonewall Attack,1.d4 d5 2.e3 Nf6 3.Bd3
B20,338,"Sicilian Defense: Snyder Variation, Queen Fianchetto Variation",1.e4 c5 2.b3 b6
A40,337,Modern Defense: Beefeater Variation,1.d4 g6 2.c4 Bg7 3.Nc3 c5 4.d5 Bxc3+ 5.bxc3 f5
B21,336,"Sicilian Defense: Smith-Morra Gambit, Accepted Classical Formation",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 a6 7.O-O Nf6
B00,336,"Nimzowitsch Defense: Scandinavian Variation, Exchange Variation",1.e4 Nc6 2.d4 d5 3.exd5 Qxd5
A57,334,"Benko Gambit: Zaitsev Variation, Nescafe Frappe Attack",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.Nc3 axb5 6.e4 b4 7.Nb5
A00,334,Polish Opening: Schiffler-Sokolsky Variation,1.b4 Nf6 2.Bb2 d5 3.e3 e6 4.b5
B69,334,"Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation Nyezhmetdinov Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 Be7 10.Nf3 b5 11.Bxf6
A00,334,Hungarian Opening: Reversed Modern Defense,1.g3 d5 2.Bg2 c5
A01,333,Nimzo-Larsen Attack: English Variation,1.b3 c5
C27,333,Bishop's Opening: Boden-Kieseritsky Gambit,1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 4.Nf3
A15,332,"English Opening: Anglo-Indian Defense, King's Indian Formation Double Fianchetto",1.c4 Nf6 2.Nf3 g6 3.g3 b6 4.Bg2 Bb7
D05,330,Rubinstein Opening: Bogoljubow Defense,1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.b3 Nc6 6.Bb2 Bd6 7.O-O O-O
E31,328,"Nimzo-Indian Defense: Leningrad Variation, Benoni Defense",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 d6
B33,324,"Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nb3
E17,324,"Queen's Indian Defense: Classical Variation, Polugayevsky Gambit",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.d5 exd5 8.Nh4
A00,324,Van Geet Opening: Napoleon Attack,1.Nc3 e5 2.Nf3 Nc6 3.d4
B22,322,"Sicilian Defense: Alapin Variation, Barmen Defense Central Exchange",1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 cxd4 5.cxd4 Nc6 6.Nf3 Bg4
B41,322,"Sicilian Defense: Kan Variation, Maroczy Bind Bronstein Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 Nf6 6.Nc3 Bb4 7.Bd3 Nc6
D30,321,Queen's Gambit Declined: Vienna Variation,1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5 Bb4+
D05,321,Rubinstein Opening: Classical Defense,1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.b3 Nc6 6.Bb2 Be7 7.O-O O-O
E64,320,"King's Indian Defense: Fianchetto Variation, Hungarian Variation",1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 d6 5.Bg2 O-O 6.O-O Nbd7 7.Nc3 a6
B17,319,"Caro-Kann Defense: Karpov Variation, Tiviakov-Fischer Attack",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Nxf6+ Nxf6
C88,318,"Ruy Lopez: Closed Variations, Trajkovic Counterattack",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 Bb7
A79,317,"Benoni Defense: Classical Variation, Czerniak Defense",1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2 Na6 11.f3
E12,316,"Queen's Indian Defense: Kasparov-Petrosian Variation, Andersson Variation",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 Ne4
A04,316,Polish Opening: Zukertort System,1.b4 Nf6 2.Nf3
A00,314,Polish Opening:  Czech Defense,1.b4 e5 2.Bb2 d6
B12,314,"Caro-Kann Defense: Advance Variation, Van der Wiel Attack Bishop Hnt",1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 e6 5.g4 Bg6 6.Nge2 c5 7.h4
B11,314,"Caro-Kann Defense: Two Knights Attack, Mindeno Variation Retreat Line",1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bh5
B33,312,"Sicilian Defense: Lasker-Pelikan Variation, Retreat Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nf3
E07,310,"Catalan Opening: Closed Variation, Botvinnik Variation",1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Nc3 c6 8.Qd3
D75,310,Neo-Gruenfeld Defense: Delayed Exchange Variation,1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.cxd5 Nxd5 7.O-O c5 8.dxc5
D17,310,"Slav Defense: Czech Variation, Carlsbad Variation Morozevich Variation",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 Nbd7 7.Nxc4 Qc7 8.g3 e5 9.dxe5 Nxe5 10.Bf4 Nfd7 11.Bg2 g5
C17,309,"French Defense: Winawer Variation, Advance Variation Moscow Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Qg4
C27,309,Vienna Game,1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4
C42,304,Russian Game: Paulsen Attack,1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nc4
C12,304,"French Defense: MacCutcheon Variation, Janowski Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Be3
D09,304,"Queen's Gambit Refused: Albin Countergambit, Modern Line",1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.Nbd2
B02,304,Alekhine Defense: Brooklyn Variation,1.e4 Nf6 2.e5 Ng8
B21,302,"Sicilian Defense: Smith-Morra Gambit, Declined Scandinavian Formation",1.e4 c5 2.d4 cxd4 3.c3 d5
A04,300,Zukertort Opening: Polish Defense,1.Nf3 b5
C55,300,"Italian Game: Two Knights Defense, Perreux Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.Ng5
A02,298,"Bird Opening: From Gambit, Lasker Variation",1.f4 e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 g5
B01,298,"Scandinavian Defense: Portuguese Variation, Portuguese Gambit",1.e4 d5 2.exd5 Nf6 3.d4 Bg4 4.f3 Bf5 5.Bb5+ Nbd7
B43,298,"Sicilian Defense: Kan Variation, Wing Attack Spraggett Attack",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5 6.Bd3 Qb6 7.Nf3
E61,298,"King's Indian Defense: Fianchetto Variation, Benjamin Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c6 7.O-O Qb6
E10,297,Blumenfeld Countergambit: Accepted,1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5 5.dxe6 fxe6 6.cxb5 d5
A00,294,Van Geet Opening: Sicilian Two Knights,1.Nc3 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4
E32,293,"Nimzo-Indian Defense: Classical Variation, Vitolinsh-Adorjan Gambit",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 O-O 5.a3 Bxc3+ 6.Qxc3 b5
A40,293,"Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation",1.e4 g6 2.d4 Bg7 3.c4 c5 4.Nf3 Qa5+
B55,292,"Sicilian Defense: Prins Variation, Venice Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Bb5+
C94,290,"Ruy Lopez: Morphy Defense, Breyer Defense Quiet Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Nb8 10.d3
D86,290,"Gruenfeld Defense: Exchange, Simagin's lesser Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 b6
C52,290,"Italian Game: Evans Gambit, Pierce Defense",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4
C02,286,"French Defense: Advance, Steinitz Variation",1.e4 e6 2.d4 d5 3.e5 c5 4.dxc5
D14,286,"Slav Defense: Exchange Variation, Trifunovic Variation",1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5 7.e3 e6 8.Qb3 Bb4
B20,285,"Sicilian Defense: Wing Gambit, Marshall Variation",1.e4 c5 2.b4 cxb4 3.a3
C55,284,"Italian Game: Scotch Gambit, Walbrodt-Baird Gambit",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5 6.c3
B45,284,"Sicilian Defense: Four Knights Variation, Cobra Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bc5
D40,282,"Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.Bg5
A40,282,"Pterodactyl Defense: Miscellany, Queen Pterodactyl Quiet",1.d4 g6 2.c4 Bg7 3.Nc3 c5 4.e3
C67,282,"Ruy Lopez: Berlin Defense, Berlin Wall J, Rogers Line",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.Qxd8+ Kxd8 9.Nc3 Bd7
E73,282,"King's Indian Defense: Averbakh Variation, Spanish Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 a6
C01,280,"French Defense: Exchange Variation, Svenonius Variation",1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nc3 Nf6 5.Bg5
C35,280,"King's Gambit: Accepted, Cunningham Defense McCormick Defense",1.e4 e5 2.f4 exf4 3.Nf3 Be7 4.Bc4 Nf6
B06,279,"Pterodactyl Defense: Sicilian, Anhanguera",1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Nf3 Qa5 5.Be3
C29,277,"Vienna Game: Vienna Gambit, Modern Variation",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.d3
A28,276,"English Opening: King's English Variation, Four Knights Variation Quiet Line",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 Bxc3
D90,275,Gruenfeld Defense: Flohr Variation,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qa4+
B18,273,"Caro-Kann Defense: Classical Variation, Flohr Variation",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nh3
D02,270,"Queen's Gambit Refused: Baltic Defense, Pseudo-Chigorin",1.d4 d5 2.c4 Bf5 3.Nc3 e6 4.Nf3 Nc6
D52,269,Queen's Gambit Declined: Cambridge Springs Defense:  Rubinstein Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Nd2 dxc4
C55,267,"Italian Game: Two Knights Defense, Max Lange attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5 6.e5
B15,267,Caro-Kann Defense: Gurgenidze Counterattack,1.e4 c6 2.d4 d5 3.Nc3 b5
A43,264,Benoni Defense: Benoni Gambit Accepted,1.d4 c5 2.dxc5
D01,264,"Queen Pawn Game: Veresov Atack, Classical Defense",1.d4 d5 2.Nc3 Nf6 3.Bg5 e6 4.Nf3
B28,264,"Sicilian Defense: O'Kelly Variation, Venice System Steiner Line",1.e4 c5 2.Nf3 a6 3.c3 d6
C31,264,"King's Gambit: Falkbeer Countergambit, Charousek Gambit",1.e4 e5 2.f4 d5 3.exd5 e4 4.d3
C52,262,"Italian Game: Evans Gambit, Slow Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.O-O
C45,261,Scotch Game: Steinitz Variation,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4
C41,260,"Philidor Defense: Lion Variation, Lion's Claw II",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Nc3 Ngf6 5.Bc4 Be7 6.O-O h6
A52,259,Budapest Defense: Alekhine Variation,1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4
C06,259,"French Defense: Tarrasch Variation, Leningrad Variation",1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 Nb6
B00,258,St. George Defense,1.e4 a6
D44,258,"Semi-Slav Defense: Botvinnik System, Ekstrom Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.exf6 gxh4 10.Ne5
B06,258,"Pterodactyl Defense: Eastern, Pterodactyl",1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.dxc5 Qa5
D31,258,"Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Gambit",1.d4 d5 2.Nf3 c6 3.c4 e6 4.Nc3 dxc4 5.g3
D45,257,"Semi-Slav Defense: Stoltz Variation, Center Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Qc2 Bd6 7.e4
C40,256,"Latvian Gambit: Accepted, Leonhardt Variation",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.Nc4 fxe4 5.Nc3
C51,255,"Italian Game: Evans Gambit, Anderssen Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Be7
C45,254,Scotch Game: Modern Defense,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nc3 Bb4
C29,254,"Vienna Game: Vienna Gambit, Breyer Variation",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Nf3 Be7
A97,254,"Dutch Defense: Ilyin-Genevsky, Winter Variation",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8 8.Re1
B06,254,Modern Defense: Norwegian Defense,1.e4 g6 2.d4 Nf6
A68,253,Benoni Defense: Four Pawns Attack,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3 O-O
C58,252,"Italian Game: Two Knights Defense, Polerio Defense Kieseritsky Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.d3
D51,252,Queen's Gambit Declined: Capablanca anti-Cambridge Springs Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.a3
A04,252,Zukertort Opening: Lisitsyn Gambit Deferred,1.Nf3 f5 2.d3 Nf6 3.e4
C53,251,"Italian Game: Classical Variation, Greco Gambit",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 d5
A06,250,Zukertort Opening: Santasiere's Folly,1.Nf3 d5 2.b4
B50,250,"Sicilian Defense: Wing Gambit, Deferred Variation",1.e4 c5 2.Nf3 d6 3.b4
D24,249,"Queen's Gambit Accepted: Gunsberg Defense, Prianishenmo Gambit",1.d4 d5 2.c4 dxc4 3.Nc3 c5 4.d5 Nf6 5.Nf3 e6 6.e4 exd5 7.e5
C44,249,Ponziani Opening: Spanish Variation,1.e4 e5 2.Nf3 Nc6 3.c3 d5 4.Bb5
C67,248,Ruy Lopez: Open Berlin Defense:  l'Hermet Variation,1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.dxe5
C20,246,King Pawn Game: Leonardis Variation,1.e4 e5 2.d3
A83,246,"Dutch Defense: Staunton Gambit, Chigorin Variation",1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 c6
E61,246,"King's Indian Defense: Semi-Classical Variation, Queenside Storm Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.e3 d6 6.Be2 Nbd7 7.O-O e5 8.b4
C67,246,"Ruy Lopez: Berlin Defense, Minckwitz Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.dxe5
B00,244,"Nimzowitsch Defense: Kennedy Variation, Paulsen Attack",1.e4 Nc6 2.d4 e5 3.dxe5 Nxe5 4.Nf3
C32,243,"King's Gambit: Falkbeer Countergambit, Modern Transfer",1.e4 e5 2.f4 d5 3.exd5 exf4
C52,242,"Italian Game: Evans Gambit, Tartakower Attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 d6 7.Qb3
A40,242,Caro-Kann Defense: De Bruycker Defense,1.e4 c6 2.d4 Na6
B21,241,"Sicilian Defense: McDonnell Attack, Tal Gambit",1.e4 c5 2.f4 d5 3.exd5 Nf6
D67,241,"Queen's Gambit Declined: Orthodox Defense, Alekhine Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.Ne4
D37,239,"Queen's Gambit Declined: Harrwitz Attack, Main Line New Main Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bf4 O-O 6.e3 c5 7.dxc5 Bxc5 8.Qc2 Nc6 9.a3 Qa5 10.O-O-O
C47,239,"Four Knights Game: Scotch Variation, Krause Gambit",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 Bb4 5.Nxe5
C13,236,"French Defense: Alekhine-Chatard Attack, Albin-Chatard Gambit",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 Bxg5 7.hxg5 Qxg5
E46,235,Nimzo-Indian Defense: Simagin Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nge2 d5 6.a3 Bd6
E12,234,"Queen's Indian Defense: Kasparov-Petrosian Variation, Romanishin Attack",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 Nxd5 7.Bd2
A42,234,"Modern Defense: Averbakh Variation, Pseudo-Saemisch",1.d4 g6 2.c4 Bg7 3.e4 d6 4.Be3 Nf6 5.f3
A10,234,English Opening: Adorjan Defense,1.c4 g6 2.e4 e5
E46,233,Nimzo-Indian Defense: Ragozin Defense,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 Nc6 5.Nf3 O-O 6.Bd3 d5 7.O-O
C70,232,"Ruy Lopez: Morphy Defense, Schliemann Defense Deferred",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 f5
B00,232,Nimzowitsch Defense: Franco-Nimzowitsch Variation,1.e4 Nc6 2.Nf3 e6
A80,232,Dutch Defense: Korchnoi Attack,1.d4 f5 2.h3
B07,231,Rat Defense: Antal Defense,1.e4 d6 2.d4 Nd7
D94,231,"Gruenfeld Defense: Three Knights Variation, Paris Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Bd3
B51,231,"Sicilian Defense: Canal Attack, Moscow Gambit",1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.c3 a6 6.Bxc6 Bxc6 7.Re1 Nf6 8.d4 Bxe4 9.Bg5
A00,230,Polish Opening: King's Indian Variation,1.b4 Nf6 2.Bb2 g6
C13,229,"French Defense: Classical Variation, Richter Attack",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.Bxf6
E27,229,Nimzo-Indian Defense: Saemisch Variation,1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O
C58,229,"Italian Game: Two Knights Defense, Polerio Defense Bogoljubow Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Qf3
D62,228,"Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation Flohr Line",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qc2 c5 8.cxd5
B74,227,"Sicilian Defense: Dragon Variation, Classical Variation Maroczy Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6 8.O-O O-O 9.Nb3 Be6 10.f4 Na5
C98,227,"Ruy Lopez: Closed Variations, Chigorin Defense",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Nc6 13.dxc5
C21,226,"Danish Gambit: Declined, Sorensen Defense",1.e4 e5 2.d4 exd4 3.c3 d5
C34,226,"King's Gambit: Accepted, Bonsch-Osmolovsky Variation",1.e4 e5 2.f4 exf4 3.Nf3 Ne7
A59,224,"Benko Gambit: Accepted, Yugoslav without 7,,,Bxf1",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.e4
C90,223,"Ruy Lopez: Closed Variations, Suetin Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.a3
B21,222,"Sicilian Defense: Smith-Morra Gambit, Accepted Kan Formation",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Nf3 a6
A42,220,Modern Defense: Pterodactyl Variation,1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 c5 5.Nf3 Qa5
E16,219,"Queen's Indian Defense: Fianchetto Variation, Rubinstein Variation",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 c5 6.d5 exd5 7.Nh4
A40,219,Englund Gambit Complex,1.d4 e5
C40,217,Gunderam Defense,1.e4 e5 2.Nf3 Qe7
C13,217,"French Defense: Alekhine-Chatard Attack, Breyer Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 c5
C07,216,"French Defense: Tarrasch Variation, Open System Suechting Line",1.e4 e6 2.d4 d5 3.Nd2 c5 4.c3
B40,216,Sicilian Defense: Paulsen-Basman Defense,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Bc5
D35,214,Queen's Gambit Declined: Harrwitz Attack,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bf4
A57,214,"Benko Gambit: Accepted, Central Storming Variation",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 g6 6.Nc3 Bxa6 7.f4
A00,213,Saragossa Opening,1.c3
A94,213,"Dutch Defense: Classical Variation, Stonewall Variation",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d5 7.b3 c6 8.Ba3
B72,212,"Sicilian Defense: Dragon, Classical, Grigoriev Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.Qd2 O-O 9.O-O-O
D84,211,"Gruenfeld Defense: Brinckmann Attack, Grünfeld Gambit Accepted",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.cxd5 Nxd5 7.Nxd5 Qxd5 8.Bxc7
E29,211,"Nimzo-Indian Defense: Saemisch Variation, Capablanca Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O 6.e3 c5 7.Bd3 Nc6 8.Ne2 b6 9.e4 Ne8
C55,210,"Italian Game: Scotch Gambit, De Riviere Defense",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Be7
C67,210,"Ruy Lopez: Berlin Defense, Rosenthal Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 a6
C26,209,"Vienna Game: Stanley Variation, Reversed Spanish",1.e4 e5 2.Nc3 Nf6 3.Bc4 Bb4
D59,209,Queen's Gambit Declined: Tartakower Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.cxd5 Nxd5 9.Bxe7 Qxe7 10.Nxd5 exd5 11.Rc1 Be6
E60,208,"Indian Game: Anti-Grünfeld, Advance Variation",1.d4 Nf6 2.c4 g6 3.d5
B62,207,Sicilian Defense: Richter-Rauzer Variation,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd3
E74,206,"King's Indian Defense: Averbakh Variation, Benoni Defense Exchange Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.dxc5
B00,206,Nimzowitsch Defense: French Connection,1.e4 Nc6 2.Nc3 e6
D20,204,Queen's Gambit Accepted: Linares Variation,1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5
A25,203,"English Opening: King's English Variation, Bremen-Hort Variation",1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Be6
D06,202,"Queen's Gambit Refused: Chigorin Defense, Tartakower Gambit",1.d4 d5 2.c4 Nc6 3.Nc3 e5
D01,200,"Queen Pawn Game: Veresov Atack, Veresov Variation",1.d4 d5 2.Nc3 Nf6 3.Bg5 Bf5 4.Bxf6
A53,200,"Old Indian Defense: Janowski Variation, Fianchetto Variation",1.d4 Nf6 2.c4 d6 3.Nc3 Bf5 4.g3
C07,199,"French Defense: Tarrasch, Eliskases Variation",1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qd8
E25,199,"Nimzo-Indian Defense: Saemisch, Romanovsky Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 Nxd5 8.dxc5 f5
B03,198,"Alekhine Defense: Four Pawns Attack, Fianchetto Variation",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 g6
C81,198,"Ruy Lopez: Open, Howell attack, Ekstroem Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7 10.Rd1 O-O 11.c4 bxc4 12.Bxc4 Qd7
B22,198,"Sicilian Defense: Alapin Variation, Stoltz Attack Ivanchuk Line",1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Bc4 Nb6 6.Bb3 c4 7.Bc2 Qc7 8.Qe2 g5
D03,198,"Queen Pawn Game: Torre Attack, Gruenfeld Variation",1.d4 d5 2.Nf3 Nf6 3.Bg5 g6
C42,196,"Russian Game: Classical Attack, Berger Variation",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1 Bg4 9.c3 f5 10.Nbd2
C53,195,"Italian Game: Classical Variation, De la Bourdonnais Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 d6 5.d4 exd4 6.cxd4 Bb6
C59,194,"Italian Game: Two Knights Defense, Steinitz Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Be2 h6 9.Nh3
B01,194,Scandinavian Defense: Anderssen Counterattack,1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 e5
C49,194,Four Knights Game: Nimzowitsch (Paulsen),1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.Bxc6
B20,193,Sicilian Defense: Bowlder Attack,1.e4 c5 2.Bc4
D34,192,"Tarrasch Defense: Classical Variation, Classical Tarrasch Gambit",1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.O-O O-O 9.dxc5 d4
D30,192,Queen's Gambit Declined: Capablanca Variation,1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nbd2
A80,190,Dutch Defense: Krejcik Gambit,1.d4 f5 2.g4
D00,190,"Queen Pawn Game: Levitsky Attack, Euwe Variation Modern Line",1.d4 d5 2.Bg5 h6 3.Bh4 c6 4.Nf3 Qb6
A49,190,Zukertort Opening: Double Fianchetto Attack,1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O
A41,190,Queen Pawn Game: Anglo-Slav Opening,1.d4 c6 2.c4 d6
B31,189,"Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation Gufeld Gambit",1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 e5 6.d4
B85,189,"Sicilian Defense: Scheveningen Variation, Classical Variation Paulsen Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.O-O Qc7 8.f4 Nc6 9.Kh1 Be7 10.a4
C54,189,"Italian Game: Classical Variation, Greco Gambit Main Line",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O Bxc3
D49,188,"Semi-Slav Defense: Meran Variation, Sozin Variation II",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Nxe5
D21,188,"Queen's Gambit Accepted: Alekhine Defense, Borisenko-Furman Variation",1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e4
C14,187,"French Defense: Classical Variation, Rubinstein Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Qd2
D07,187,"Queen's Gambit Refused: Chigorin Defense, Exchange Variation Costa's Line",1.d4 d5 2.c4 Nc6 3.cxd5 Qxd5 4.e3 e5 5.Nc3 Bb4 6.Bd2 Bxc3 7.Bxc3 exd4 8.Ne2
C00,187,St. George Defense,1.e4 e6 2.d4 a6
D00,186,"Queen Pawn Game: Veresov Atack, Alburt Defense",1.d4 d5 2.Nc3 Bf5
C51,186,"Italian Game: Evans Gambit, Anderssen Variation Cordel Line",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Be7 6.d4 Na5
C83,186,"Ruy Lopez: Open Variations, Classical Defense Main Line",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Be7 10.Re1
A09,184,Reti Opening: Reversed Blumenfeld Gambit,1.Nf3 d5 2.c4 d4 3.e3 c5 4.b4
A56,182,Benoni Defense: Weenink Variation,1.d4 Nf6 2.c4 c5 3.dxc5 e6
C17,182,"French Defense: Winawer Variation, Bogoljubow Variation Icelandic Defense",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Bd2 Ne7 6.f4
C20,181,Bishop's Opening: Boi Variation,1.e4 e5 2.Bc4 Bc5
C43,181,"Russian Game: Modern Attack, Murrey Variation",1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 Nc6
C83,180,"Ruy Lopez: Open Variations, Malkin Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Be7 10.Nbd2 O-O 11.Qe2
B04,179,"Alekhine Defense: Modern Variation, Keres Variation",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 Nb6 6.Bb3 Bg7 7.a4
B13,179,"Caro-Kann Defense: Panov Attack, Modern Defense Czerniak Line",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Bg5 Qa5
E23,179,"Nimzo-Indian Defense: Spielmann Variation, Romanovsky Gambit",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3 c5 5.dxc5 Nc6
D52,178,Queen's Gambit Declined: Cambridge Springs Defense:  Capablanca Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Bxf6
C54,178,"Italian Game: Classical Variation, Greco Gambit Moeller-Therkatz Attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O Bxc3 9.d5
B33,178,"Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation Peresypkin's Sacrifice",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Bxf6 gxf6 10.Nd5 f5 11.Bxb5
A04,178,Zukertort Opening: Slav Invitation,1.Nf3 c6
A40,178,Mikenas Defense: Lithuanian Variation,1.d4 Nc6 2.c4 e5 3.d5 Nce7
C02,178,"French Defense: Advance Variation, Nimzowitsch Attack",1.e4 e6 2.d4 d5 3.e5 c5 4.Qg4
C13,178,"French Defense: Classical Variation, Tartakower Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Ne4
B28,178,"Sicilian Defense: O'Kelly Variation, Reti System",1.e4 c5 2.Nf3 a6 3.g3
C48,177,"Four Knights Game: Spanish Variation, Classical Variation Marshall Gambit",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bc5 5.Nxe5 Nd4 6.Ba4 O-O
C42,176,"Russian Game: Classical Attack, Mason Variation",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O O-O
A53,176,"Old Indian Defense: Janowski Variation, Main Line",1.d4 Nf6 2.c4 d6 3.Nc3 Bf5 4.f3
A91,176,"Dutch Defense: Classical Variation, Blackburne Attack",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nh3
B40,174,Sicilian Defense: Marshall Counterattack,1.e4 c5 2.Nf3 e6 3.d4 d5
C00,174,French Defense: Reversed Philidor Formation,1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.Ngf3 Nc6 5.Be2
C57,173,"Italian Game: Two Knights Defense, Ulvestad Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 b5
C30,172,"King's Gambit: Declined, Queen's Knight Defense",1.e4 e5 2.f4 Nc6
A81,172,Dutch Defense: Blackburne Variation,1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.Nh3
C49,172,"Four Knights Game: Spanish Variation, Symmetrical Variation",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Ne2
B00,172,"St. George Defense: New St. George, Traditional Line",1.e4 a6 2.d4 e6 3.Nf3 b5 4.Bd3 c5 5.c3 Bb7 6.O-O Nf6
C41,171,"Philidor Defense: Nimzowitsch Variation, Rellstab Variation",1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.dxe5 Nxe4 5.Qd5
D99,171,"Gruenfeld Defense: Russian Variation, Smyslov Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 Nfd7 9.Qb3
B96,170,"Sicilian Defense: Najdorf Variation, Polugayevsky  Variation Simagin Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5 8.e5 dxe5 9.fxe5 Qc7 10.Qe2
D51,170,Queen's Gambit Declined: Manhattan Variation,1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 Bb4
A00,170,Van Geet Opening: Reversed Nimzowitsch,1.Nc3 e5
D26,170,"Queen's Gambit Accepted: Classical Defense, Steinitz Variation Exchange Variation",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O cxd4
A96,169,"Dutch Defense: Classical Variation, Huisl Variation",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Ne4
B53,168,"Sicilian Defense: Modern Variations, Tartakower",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.c3
C82,167,"Ruy Lopez: Open Variations, Dilworth Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Nbd2 O-O 11.Bc2 Nxf2
E63,167,"King's Indian Defense: Fianchetto Variation, Panno Variation Korchnoi Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nc6 7.O-O a6 8.h3 Rb8 9.Be3 b5 10.Nd2
B00,166,"Nimzowitsch Defense: Lean Variation, Colorado Counter Accepted",1.e4 Nc6 2.Nf3 f5 3.exf5
D30,166,"Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch Bishop Attack",1.d4 d5 2.c4 e6 3.Nf3 c5 4.cxd5 exd5 5.Bg5
A00,166,Hungarian Opening: Catalan Formation,1.g3 d5 2.Bg2 e6
C80,166,"Ruy Lopez: Open Variations, Riga Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 exd4
B28,165,"Sicilian Defense: O'Kelly Variation, Venice System Barcza Line",1.e4 c5 2.Nf3 a6 3.c3 Nf6
C38,165,"King's Gambit: Accepted, Greco Gambit",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7 5.h4 h6 6.d4 d6
C45,164,"Scotch Game: Scotch Gambit, Kingside Variation",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Nf6 5.e5 Ng4
C40,163,"Latvian Gambit: Accepted, Bilguer Variation",1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4
E64,163,"King's Indian Defense: Fianchetto Variation, Pterodactyl Variation",1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 c5 5.Bg2 Qa5+
A00,162,Polish Opening: Bugayev Attack,1.b4 e5 2.a3
C44,162,"Scotch Game: Göring Gambit, Main Line",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 dxc3 5.Nxc3 Bb4
B71,162,"Sicilian Defense: Dragon Variation, Levenfish Variation Main Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4 Nbd7
B06,162,Modern Defense: Improved Maroczy,1.e4 g6 2.d4 Bg7 3.Nf3 c5 4.c4 Qb6
C33,162,"King's Gambit: Accepted, Mason-Keres Gambit",1.e4 e5 2.f4 exf4 3.Nc3
E30,161,"Nimzo-Indian Defense: Leningrad Variation, Averbakh Gambit",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 b5
C51,161,"Italian Game: Evans gambit declined, 5.a4",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bb6 5.a4
C57,160,"Italian Game: Two Knights Defense, Fritz Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nd4
C54,160,"Italian Game: Classical Variation, Greco Gambit Anderssen Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 d5 7.Bb5 Ne4 8.cxd4 Bb4+
E97,158,"King's Indian Defense: Orthodox Variation, Korchnoi Attack",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Bd2
B07,158,Pirc Defense: Chinese Variation,1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be2 Bg7 5.g4
C45,158,Scotch Game: Blumenfeld attack,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.Nb5
C47,158,"Four Knights Game: Scotch Variation, Krause Gambit Leonhardt Defense",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 Bb4 5.Nxe5 Qe7
D02,157,Queen Pawn Game: Anti-Torre,1.d4 d5 2.Nf3 Bg4
C70,155,"Ruy Lopez: Morphy Defense, Classical Defense Deferred",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Bc5
B90,155,"Sicilian Defense: Najdorf Variation, Freak Attack",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Rg1
A00,154,Polish Opening: Tartakower Gambit,1.b4 e5 2.Bb2 f6 3.e4
B09,152,"Pirc Defense: Austrian Attack, Ljubojevic Variation",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Bc4
D68,151,"Queen's Gambit Declined: Orthodox Defense, Classical Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5 13.Qc2
C82,151,"Ruy Lopez: Open Variations, Motzko Attack II",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Qd3
D85,150,"Gruenfeld Defense: Exchange Variation, Nadanian Attack",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.Na4
C44,150,"Scotch Game: Göring Gambit, Bardeleben Variation",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 dxc3 5.Nxc3 Bb4 6.Bc4 Nf6
A42,150,"Modern Defense: Averbakh System, Randspringer Variation",1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 f5
C08,150,"French Defense: Tarrasch Variation, Open System Advance Line",1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 c4
C60,150,"Ruy Lopez: Cozio Defense, Paulsen Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.Nc3 g6
B30,149,"Sicilian Defense: Closed Sicilian, Anti-Sveshnikov Variation Kharlov-Kramnik Line",1.e4 c5 2.Nc3 Nc6 3.Nf3 e5 4.Bc4 d6 5.d3 Be7 6.Nd2 Bg5
E93,148,"King's Indian Defense: Petrosian Variation, Keres Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 Nbd7 8.Bg5 h6 9.Bh4 g5 10.Bg3 Nh5 11.h4
A82,148,"Dutch Defense: Staunton Gambit, Balogh Defense",1.d4 f5 2.e4 d6
C42,148,"Russian Game: Classical Attack, Chigorin Variation Browne Attack",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.c4 Nb4 9.cxd5
B28,148,"Sicilian Defense: O'Kelly Variation, Quiet System",1.e4 c5 2.Nf3 a6 3.d3
A41,148,"Zukertort Opening: Wade Defense, Chigorin Plan",1.Nf3 d6 2.d4 Bg4 3.c4 Nd7 4.Qb3 Rb8
D00,147,Blackmar-Diemer Gambit: Vienna Variation,1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5
C82,147,"Ruy Lopez: Open Variations, Berlin Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Nc5
B00,147,"Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation Heinola-Deppe Gambit",1.e4 Nc6 2.d4 d5 3.Nc3 e5
D09,146,"Queen's Gambit Refused: Albin Countergambit, Fianchetto Variation Bg4 Line",1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.g3 Bg4
A00,146,Grob Opening,1.g4
C32,146,"King's Gambit: Falkbeer Countergambit, Charousek Gambit Accepted",1.e4 e5 2.f4 d5 3.exd5 e4 4.d3 Nf6 5.dxe4
C15,146,"French Defense: Winawer Variation, Fingerslip Variation Main Line",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd2 dxe4 5.Qg4 Nf6 6.Qxg7 Rg8 7.Qh6
B34,144,"Sicilian Defense: Accelerated Dragon, Exchange Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nxc6
D09,144,"Queen's Gambit Refused: Albin Countergambit, Fianchetto Variation Be6 Line",1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.g3 Be6
C34,144,"King's Gambit: Accepted, Becker Defense",1.e4 e5 2.f4 exf4 3.Nf3 h6
C70,144,"Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 g6
D85,144,"Gruenfeld Defense: Exchange Variation, Modern Exchange Variation Kramnik's line",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3 c5 8.h3
A15,143,"English Opening: Anglo-Indian Defense, Scandavian Defense Exchange Variation",1.c4 Nf6 2.Nf3 d5 3.cxd5 Nxd5
D15,141,Slav Defense: Suchting Variation,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 Qb6
E77,140,"King's Indian Defense: Four Pawns Attack, Florentine Gambit",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.d5 e6 8.Nf3 exd5 9.e5
D00,140,Blackmar-Diemer Gambit: Netherlands Variation,1.d4 d5 2.e4 dxe4 3.Nc3 f5
B40,140,Sicilian Defense: Gaw-Paw Variation,1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Qb6
C67,139,"Ruy Lopez: Berlin Defense, l'Hermet Variation Westerinen Line",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Ne4
A18,139,"English Opening: Anglo-Indian Defense, Zviagintsev-Krasenkov Attack",1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.g4
B40,139,Sicilian Defense: Drazic Variation,1.e4 c5 2.Nf3 e6 3.d4 a6
A00,138,Polish Opening: Outflank Variation,1.b4 c6
C14,138,"French Defense: Classical Variation, Alapin Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Nb5
E89,137,"King's Indian Defense: Saemisch Variation, Closed Variation Main Line",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6 8.Nge2 cxd5
B31,137,"Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation Lutikov Gambit",1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.d4
A13,136,"English Opening: Agincourt Defense, Bogoljubow Defense",1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Bd6
C41,135,"Philidor Defense: Hanham Variation, Steiner Variation",1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.O-O Be7 6.dxe5
A17,134,"English Opening: Anglo-Indian Defense, Queens Indian Variation",1.c4 Nf6 2.Nc3 e6 3.Nf3 b6 4.e4 Bb7 5.Bd3
B06,134,"Pterodactyl Defense: Eastern, Anhanguera",1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.Be3
C63,133,"Ruy Lopez: Schliemann Defense, Exchange Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Bxc6
E51,133,"Nimzo-Indian Defense: Normal Variation, Saemisch Deferred",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.a3
D27,133,"Queen's Gambit Accepted: Classical Defense, Russian Gambit",1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.e4
A52,132,"Budapest Defense: Alekhine Variation, Abonyi Variation",1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4 Nxe5 5.f4 Nec6
C40,132,Latvian Gambit: Accepted,1.e4 e5 2.Nf3 f5 3.exf5
D00,132,Blackmar-Diemer Gambit: Tartakower Variation,1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bf5
D02,132,London System: Poisoned Pawn Variation,1.d4 d5 2.Nf3 Nf6 3.Bf4 c5 4.e3 Qb6 5.Nc3
A01,131,Nimzo-Larsen Attack: Symmetrical Variation,1.b3 b6
C29,131,"Vienna Game: Vienna Gambit, Paulsen Attack",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Qf3
C41,130,Philidor Defense: Philidor Countergambit,1.e4 e5 2.Nf3 d6 3.d4 f5
D85,129,"Gruenfeld Defense: Exchange Variation, Modern Exchange Variation Pawn Grab line",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3 c5 8.Rb1 O-O 9.Be2 Nc6 10.d5 Bxc3+
B24,129,"Sicilian Defense: Closed, Smyslov Variation",1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 e6 6.Be3 Nd4 7.Nce2
B09,129,"Pirc Defense: Austrian Attack, Unzicker Attack Bronstein Variation",1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5 Nfd7 7.h4
C45,128,"Scotch Game: Classical Variation, Millennium Variation",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Qg6
C46,128,Three Knights Opening: Steinitz - Rosenthal Variation,1.e4 e5 2.Nf3 Nc6 3.Nc3 g6 4.d4 exd4 5.Nd5
A40,128,English Defense: Perrin Variation,1.c4 e6 2.d4 b6 3.e4 Bb7 4.Bd3 Nc6
A45,128,Indian Game: Paleface Attack,1.d4 Nf6 2.f3
D00,126,Blackmar-Diemer Gambit: Teichmann Variation,1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4
E73,126,"King's Indian Defense: Averbakh Variation, Nc6 Defense",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Nc6
B12,123,"Caro-Kann Defense: Advance Variation, Bayonet Attack",1.e4 c6 2.d4 d5 3.e5 Bf5 4.g4
C23,123,Bishop's Opening: Philidor counter-attack,1.e4 e5 2.Bc4 c6
C03,122,"French Defense: Tarrasch Variation, Haberditz Variation",1.e4 e6 2.d4 d5 3.Nd2 f5
C44,122,Ponziani Opening: Ponziani Countergambit,1.e4 e5 2.Nf3 Nc6 3.c3 f5
C53,121,"Italian Game: Classical Variation, Albin Gambit",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.O-O
B00,121,"Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation Nimzowitsch Gambit",1.e4 Nc6 2.d4 d5 3.Nc3 dxe4 4.d5 Ne5
C18,121,"French Defense: Winawer Variation, Poisoned Pawn Variation Paoli Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 Qc7 8.Qxg7 Rg8 9.Qxh7 cxd4 10.Kd1
A66,121,Benoni Defense: Mikenas Variation,1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5
C45,121,Scotch Game: Romanishin Variation,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3 Bb4+
A40,120,Englund Gambit Complex: Englund Gambit,1.d4 e5 2.dxe5 Nc6 3.Nf3 Qe7
B50,120,"Sicilian Defense: Delayed Alapin, Basman-Palatnik Double Gambit",1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Be2 Nc6 5.d4 cxd4 6.cxd4 Nxe4 7.d5 Qa5+ 8.Nc3 Nxc3 9.bxc3
D87,119,"Gruenfeld Defense: Exchange Variation, Seville Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 c5 9.O-O Nc6 10.Be3 Bg4 11.f3 Na5 12.Bxf7+
D31,119,"Semi-Slav Defense: Marshall Gambit, Forgotten Variation",1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 5.Nc3
D49,119,"Semi-Slav Defense: Meran Variation, Rabinovich Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.e5 cxd4 11.Nxb5 Ng4
C66,118,"Ruy Lopez: Berlin Defense, Closed Wolf Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 exd4
D63,118,"Queen's Gambit Declined: Orthodox Defense, Pillsbury Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 b6 8.cxd5 exd5 9.Bd3
C41,117,"Philidor Defense: Lion Variation, Sozin Variation",1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.Qe2 c6 8.a4 exd4
C15,116,"French Defense: Winawer Variation, Fingerslip Variation Kunin Double Gambit",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd2 dxe4 5.Qg4 Qxd4
B05,116,"Alekhine Defense: Modern Variation, Panov Variation",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.h3
C44,114,King's Knight Opening: Konstantinopolsky Opening,1.e4 e5 2.Nf3 Nc6 3.g3
C10,113,"French Defense: Rubinstein Variation, Maric Variation",1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Qd5
E54,112,"Nimzo-Indian Defense: Normal Variation, Gligoric System Smyslov Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Qe7
A48,111,"Indian Game: Colle System, King's Indian Variation",1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Bd3 d6
C45,111,Scotch Game: Meitner Variation,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.Nc2
A18,111,"English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation",1.c4 Nf6 2.Nc3 e6 3.e4 Nc6
B81,111,"Sicilian Defense: Scheveningen Variation, Delayed Keres Attack Perenyi Gambit",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.g4 e5 8.Nf5 g6 9.g5
C55,110,"Italian Game: Scotch Gambit, Max Lange Attack Long Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5 6.e5 d5 7.exf6 dxc4 8.Re1+ Be6 9.Ng5 Qd5 10.Nc3 Qf5 11.Nce4
A10,110,English Opening: Anglo-Scandinavian Defense,1.c4 d5
D70,110,Gruenfeld Defense: Lutikov Variation,1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.f3
D83,110,"Gruenfeld Defense: Brinckmann Attack, Grünfeld Gambit Botvinnik Variation",1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Rc1 c5 7.dxc5 Be6
B53,109,"Sicilian Defense: Chekhover Variation, Zaitsev Defense",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Qd7
A56,108,Benoni Defense: Vulture Defense,1.d4 c5 2.d5 Nf6 3.c4 Ne4
C63,108,"Ruy Lopez: Schliemann Defense, Möhring Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5
B74,108,"Sicilian Defense: Dragon Variation, Classical Variation Alekhine Line",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6 8.O-O O-O 9.Nb3 a5
C25,108,Vienna Game: Omaha Gambit,1.e4 e5 2.Nc3 d6 3.f4
B98,107,"Sicilian Defense: Najdorf Variation, Goteborg (Argentine)",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 h6 9.Bh4 g5
C00,106,French Defense: Reti-Spielmann Attack,1.e4 e6 2.g3
E11,106,Bogo-Indian Defense: Retreat Variation,1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Be7
A46,106,"Torre Attack: Classical Defense, Petrosian Gambit",1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.e3 b6 5.d5
C30,106,"King's Gambit: Declined, Petrov's Defense",1.e4 e5 2.f4 Nf6
E61,105,"King's Indian Defense: Semi-Classical Variation, Benoni Variation",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.e3 d6 6.Be2 c6
A58,104,Benko Gambit: Nd2 Variation,1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.Nf3 g6 8.Nd2
E10,104,Blumenfeld Countergambit: Spielmann Variation,1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5 5.Bg5 exd5 6.cxd5 h6
C18,103,"French Defense: Winawer Variation, Maroczy-Wallis Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 cxd4 6.axb4 dxc3
C68,102,"Ruy Lopez: Exchange Variation, Lutikov Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 bxc6
C57,102,"Italian Game: Two Knights Defense, Traxler Counterattack Bishop sac line",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5 5.Bxf7+
E12,102,"Queen's Indian Defense: Kasparov Variation, Botvinnik Attack",1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.Bg5 h6 6.Bh4 g5 7.Bg3 Nh5
C65,102,"Ruy Lopez: Berlin Defense, Nyholm Attack",1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d4 exd4 5.O-O
B17,101,"Caro-Kann Defense: Karpov Variation, Modern Variation Ivanchuk Defense",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Ng5 Ndf6
C20,100,English Opening: The Whale,1.e4 e5 2.c4
C40,100,Latvian Gambit: Mason Countergambit,1.e4 e5 2.Nf3 f5 3.d4
B20,100,"Sicilian Defense: Wing Gambit, Carlsbad Variation",1.e4 c5 2.b4 cxb4 3.a3 bxa3
B50,100,"Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order Accepted",1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.dxc5 Nxe4
D00,98,Queen Pawn Game: Hübsch Gambit,1.d4 Nf6 2.Nc3 d5 3.e4 Nxe4
C44,98,"Ponziani Opening: Spanish Variation, Harrwitz Attack Nikitin Gambit",1.e4 e5 2.Nf3 Nc6 3.c3 d5 4.Bb5 dxe4 5.Nxe5 Qd5 6.Qa4
B31,98,"Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation Totsky Attack",1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.Qa4
C12,96,"French Defense: MacCutcheon Variation, Chigorin Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.exf6
A28,96,"English Opening: King's English Variation, Four Knights Variation",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.d4 exd4 5.Nxd4 Bb4 6.Bg5 h6 7.Bh4 Bxc3+ 8.bxc3 Ne5
A06,96,Zukertort Opening: Reversed Mexican Defense,1.Nf3 d5 2.Nc3
A28,94,"English Opening: King's English Variation, Four Knights Variation Quiet Line",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 O-O 6.Nd5 Re8 7.Qf5
E99,94,"King's Indian Defense: Orthodox Variation, Classical System Kozul Gambit",1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Be3 f5 11.f3 f4 12.Bf2 g5 13.Rc1 Ng6 14.c5
C89,93,"Ruy Lopez: Marshall Attack, Steiner Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 e4
C00,93,French Defense: Pelikan Variation,1.e4 e6 2.Nc3 d5 3.f4
A20,93,"English Opening: King's English Variation, Nimzowitsch-Flohr Variation",1.c4 e5 2.Nf3 e4
D00,92,Blackmar-Diemer Gambit: Ryder Gambit,1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Qxf3
C89,92,"Ruy Lopez: Marshall Attack, Re3 variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.Bxd5 cxd5 13.d4 Bd6 14.Re3
A90,92,"Dutch Defense: Nimzo-Dutch Variation, Alekhine Variation",1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Bb4+ 5.Bd2 Be7
C42,91,Russian Game: Damiano Variation,1.e4 e5 2.Nf3 Nf6 3.Nxe5 Nxe4
A28,91,"English Opening: King's English Variation, Four Knights Variation Bradley Beach Variation",1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.d4 e4
E23,91,"Nimzo-Indian Defense: Spielmann Variation, Karlsbad Variation",1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3 c5 5.dxc5 Nc6 6.Nf3 Ne4 7.Bd2 Nxd2
A45,90,System: Canard Formation,1.d4 Nf6 2.f4
C45,90,Scotch Game: Horwitz Attack,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nb5
A57,90,"Benko Gambit: Declined, Bishop Attack",1.d4 Nf6 2.c4 c5 3.d5 b5 4.Bg5
C43,89,"Russian Game: Modern Attack, Trifunovic Variation",1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Bd6 6.O-O O-O 7.c4 Bxe5
B21,88,"Sicilian Defense: Smith-Morra Gambit, Accepted Fianchetto Defense",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 g6
C55,87,Italian Game: Anti-Fried Liver Defense,1.e4 e5 2.Nf3 Nc6 3.Bc4 h6
C10,87,French Defense: Marshall Variation,1.e4 e6 2.d4 d5 3.Nc3 c5
C89,87,"Ruy Lopez: Marshall Attack, Original Marshall Attack",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 Nf6
A00,87,Mieses Opening: Reversed Rat,1.d3 e5
C50,87,Italian Game: Rousseau Gambit,1.e4 e5 2.Nf3 Nc6 3.Bc4 f5
C42,85,"Russian Game: Cochrane Gambit, Center Variation",1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nxf7 Kxf7 5.d4
C57,84,"Caro-Kann Defense: Classical Variation, Seirawan Variation",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 e6 11.Bd2 Ngf6 12.O-O-O Bd6
C58,84,"Italian Game: Two Knights Defense, Colman Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Qf3 Rb8
C56,84,"Italian Game: Scotch Gambit, Max Lange Attack Spielmann Defense",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5 6.e5 Ng4
C20,82,King Pawn Game: Macleod Attack,1.e4 e5 2.c3
A00,81,Clemenz Opening,1.h3
B21,80,"Sicilian Defense: Smith-Morra Gambit, Declined Dubois Variation",1.e4 c5 2.d4 cxd4 3.c3 d3 4.c4
B12,80,"Caro-Kann Defense: Maroczy Variation, Maroczy Gambit",1.e4 c6 2.d4 d5 3.f3 dxe4 4.fxe4 e5 5.Nf3 exd4 6.Bc4
C01,80,"French Defense: Winawer Variation, Exchange Variation Canal Attack",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.exd5 exd5 5.Bd3 Ne7 6.Qh5
C52,80,"Italian Game: Evans Gambit, Mieses Defense",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O Nge7
A80,80,Dutch Defense: Kmoch Attack,1.d4 f5 2.Qd3
C42,79,"Russian Game: Damiano Variation, Kholmov Gambit",1.e4 e5 2.Nf3 Nf6 3.Nxe5 Nxe4 4.Qe2 Qe7
D47,79,"Semi-Slav Defense: Meran Variation, Wade Variation Kaidanov Gambit",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 Bb7 9.e4 b4 10.Na4 c5 11.e5 Nd5 12.O-O cxd4 13.Nxd4
D00,78,Blackmar-Diemer Gambit: Euwe Defense,1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nf3 e6
B18,78,"Caro-Kann Defense: Classical Variation, Maroczy Attack",1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.f4
B02,78,Alekhine Defense: Spielmann Gambit,1.e4 Nf6 2.Nc3 d5 3.e5 Nfd7 4.e6
C30,78,"King's Gambit: Declined, Miles Defense",1.e4 e5 2.f4 Nc6 3.Nf3 f5
D44,78,"Semi-Slav Defense: Botvinnik System, Alatortsev System",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 Nd5
D31,77,"Queen's Gambit Refused: Baltic Defense, Argentinian Gambit",1.d4 d5 2.c4 Bf5 3.cxd5 Bxb1 4.Qa4+ c6 5.dxc6 Nxc6
D07,77,"Queen's Gambit Refused: Chigorin Defense, Main Line Alekhine Variation",1.d4 d5 2.c4 Nc6 3.Nf3 Bg4 4.Qa4
C00,76,Rat Defense: Small Center Defense,1.e4 d6 2.d4 e6
C39,76,"King's Gambit: Accepted, Kieseritsky Gambit Kolisch Defense",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 d6
A22,75,"English Opening: King's English Variation, Bellon Gambit",1.c4 e5 2.Nc3 Nf6 3.Nf3 e4 4.Ng5 b5
C44,75,Ponziani Opening: Steinitz Variation,1.e4 e5 2.Nf3 Nc6 3.c3 d5 4.Qa4 f6
D66,74,"Queen's Gambit Declined: Orthodox Defense, Fianchetto Variation",1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Bd3 dxc4 9.Bxc4 b5
B15,74,Caro-Kann Defense: Von Hennig Gambit,1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Bc4
C27,74,"Vienna Game: Stanley Variation, Frankenstein-Dracula Variation",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 4.Qh5 Nd6 5.Bb3 Nc6 6.Nb5 g6 7.Qf3 f5 8.Qd5 Qe7 9.Nxc7+ Kd8 10.Nxa8 b6
B10,74,Caro-Kann Defense: Euwe Attack,1.e4 c6 2.b3
C60,72,"Ruy Lopez: Schleimann Defense, Jaenisch Gambit Accepted",1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.exf5
B27,71,Sicilian Defense: Quinteros Variation,1.e4 c5 2.Nf3 Qc7
B58,71,"Sicilian Defense: Boleslavsky Variation, Louma Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nxc6
C45,70,"Scotch Game: Classical Variation, Blackburne Attack",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.Qd2
C02,69,"French Defense: Advance Variation, Nimzowitsch Gambit",1.e4 e6 2.d4 d5 3.e5 c5 4.Qg4 cxd4 5.Nf3
B22,69,"Sicilian Defense: Alapin Variation, Sherzer Variation",1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 e6 5.Nf3 Nc6
C39,69,"King's Gambit: Accepted, Kieseritsky Gambit Rubinstein Variation",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.d4
C70,68,"Ruy Lopez: Morphy Defense, Graz Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Bc5
C30,68,"King's Gambit: Declined, Keene Defense",1.e4 e5 2.f4 Qh4+ 3.g3 Qe7
A59,67,"Benko Gambit: Accepted, Yugoslav with Bxf1 and Nge2",1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.e4 Bxf1 8.Kxf1 g6 9.Nge2
C02,67,"French Defense: Advance Variation, Extended Bishop Swap",1.e4 e6 2.d4 d5 3.e5 Bd7
B77,67,"Sicilian Defense: Dragon, Yugoslav attack, Byrne Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 a5
C57,66,"Italian Game: Two Knights Defense, Traxler Counterattack Knight sac line",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5 5.Nxf7
A57,66,"Benko Gambit: Declined, Pseudo-Saemisch",1.d4 Nf6 2.c4 c5 3.d5 b5 4.f3
C41,66,"Philidor Defense: Philidor Countergambit, Zukertort Variation",1.e4 e5 2.Nf3 d6 3.d4 f5 4.Nc3
A00,66,Grob Opening: Keene Defense,1.g4 d5 2.h3 e5 3.Bg2 c6
C56,66,"Italian Game: Scotch Gambit, Anderssen Attack Main Line",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Nxe4 6.Re1 d5 7.Bxd5 Qxd5 8.Nc3 Qa5 9.Nxe4 Be6 10.Bd2 Qd5 11.Bg5
C44,66,Ponziani Opening: Caro Gambit,1.e4 e5 2.Nf3 Nc6 3.c3 d5 4.Qa4 Bd7
C59,65,"Italian Game: Two Knights Defense, Polerio Defense Goering Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Be2 h6 9.Nf3 e4 10.Ne5 Qc7
C13,64,"French Defense: Classical Variation, Richter Attack",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.Bxf6 Bxf6 6.e5 Be7 7.Qg4
C57,63,"Italian Game: Two Knights Defense, Fritz, Gruber Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nd4 6.c3 b5 7.Bf1 Nxd5 8.Ne4
B33,62,"Sicilian Defense: Lasker-Pelikan Variation, Exchange Variation",1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nxc6
C31,62,"King's Gambit: Falkbeer Countergambit, Blackburne Attack",1.e4 e5 2.f4 d5 3.Nf3
B02,61,Alekhine Defense: Steiner Variation,1.e4 Nf6 2.e5 Nd5 3.c4 Nb6 4.b3
B28,61,"Sicilian Defense: O'Kelly Variation, Maroczy Bind Geller Line",1.e4 c5 2.Nf3 a6 3.c4 Nc6 4.d4 cxd4 5.Nxd4 e5
C00,60,French Defense: Alapin Gambit,1.e4 e6 2.d4 d5 3.Be3
B04,60,"Alekhine Defense: Modern Variation, Alekhine Gambit",1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.c4 Nb6 6.Be2
B80,58,"Sicilian Defense: Scheveningen Variation, Vitolins Variation",1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bb5+
B57,58,Sicilian Defense: Magnus Smith trap,1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 g6 7.Nxc6 bxc6 8.e5
C41,58,Philidor Defense: Morphy Gambit,1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Bc4
B22,58,"Sicilian Defense: Alapin Variation, Barmen Defense Milner-Barry Attack",1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 cxd4 5.cxd4 Nc6 6.Nf3 e5 7.Nc3 Bb4 8.Be2
C33,58,"King's Gambit: Accepted, Bishop's Gambit Bledow Countergambit",1.e4 e5 2.f4 exf4 3.Bc4 d5 4.Bxd5 Nf6
B28,57,"Sicilian Defense: O'Kelly Variation, Normal System Taimanov Line",1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Nxd4 e5
C00,57,French Defense: Steinitz Attack,1.e4 e6 2.e5
C13,57,"French Defense: Classical Variation, Frankfurt Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Ng8 6.Be3 b6
B21,56,"Sicilian Defense: Morphy Gambit, Andreaschek Gambit",1.e4 c5 2.d4 cxd4 3.Nf3 e5 4.c3
A43,55,"Benoni Defense: Benoni Gambit, Schlenker Defense",1.d4 c5 2.dxc5 Na6
B00,54,Borg Defense,1.e4 g5
C40,54,"Latvian Gambit: Mayet Attack, Poisoned Pawn Variation",1.e4 e5 2.Nf3 f5 3.Bc4 fxe4 4.Nxe5 Qg5 5.d4 Qxg2
A01,53,Nimzo-Larsen Attack: Dutch Variation,1.b3 f5
C24,53,"Bishop's Opening: Urusov Gambit, Keidansky Gambit",1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 Nxe4 5.Qxd4
D02,53,"Queen's Gambit Refused: Baltic Defense, Queen Attack",1.d4 d5 2.c4 Bf5 3.Qb3
A81,53,"Dutch Defense: Leningrad Variation, Karlsbad Variation",1.d4 f5 2.g3 g6 3.Bg2 Bg7 4.Nh3
C48,52,Four Knights Game: Ranken Variation,1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 a6 5.Bxc6
C20,52,King Pawn Game: Alapin Opening,1.e4 e5 2.Ne2
C40,51,Latvian Gambit: Fraser Defense,1.e4 e5 2.Nf3 f5 3.Nxe5 Nc6
B45,51,"Sicilian Defense: Paulsen Variation, American Attack",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bb4 7.Nd6+
A51,51,Budapest Defense: Fajarowicz - Steiner Variation,1.d4 Nf6 2.c4 e5 3.dxe5 Ne4 4.Qc2
C40,51,Latvian Gambit: Mlotkowski Variation,1.e4 e5 2.Nf3 f5 3.Nc3
A82,51,"Dutch Defense: Staunton Gambit, Tartakower Variation",1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.g4
B01,51,Scandinavian Defense: Grünfeld Variation,1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 Bf5 6.Ne5 c6 7.g4
C62,51,"Ruy Lopez: Steinitz Defense, Nimzowitsch Attack",1.e4 e5 2.Nf3 Nc6 3.Bb5 d6 4.d4 Bd7 5.Nc3 Nf6 6.Bxc6
C55,50,Italian Game: Two Knights Defense,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 Nxe4
D20,50,Queen's Gambit Accepted: Accelerated Mannheim Variation,1.d4 d5 2.c4 dxc4 3.Qa4+
D01,50,"Queen Pawn Game: Veresov Atack, Boyce Defense",1.d4 d5 2.Nc3 Nf6 3.Bg5 Ne4
B21,50,"Sicilian Defense: Smith-Morra Gambit, Declined Center Formation",1.e4 c5 2.d4 cxd4 3.c3 e5
C40,49,Elephant Gambit: Paulsen Countergambit,1.e4 e5 2.Nf3 d5 3.exd5 e4
C47,49,"Four Knights: Scotch Variation, Belgrade Gambit Modern Defense",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nd5 Nxe4 6.Qe2 f5
C20,48,Portuguese Opening,1.e4 e5 2.Bb5
C29,48,"Vienna Game: Vienna Gambit, Kaufmann Variation",1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Nf3 Bg4 6.Qe2
D11,48,Slav Defense: Bonet Gambit,1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Bg5
C27,48,"Vienna Game: Stanley Variation, Alekhine Variation",1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 4.Qh5 Nd6 5.Bb3 Be7 6.Nf3 Nc6 7.Nxe5
A00,47,Polish Opening: Baltic Defense,1.b4 d5 2.Bb2 Bf5
A57,47,Benko Gambit: Nescafe Frappe attack,1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.Nc3 axb5 6.e4 b4 7.Nb5 d6 8.Bc4
A00,46,Polish Opening: Bugayev Advance Variation,1.b4 e5 2.Bb2 f6 3.b5
C38,46,"King's Gambit: Accepted, Hanstein Gambit",1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7 5.O-O
C41,46,Philidor Defense: Steinitz Variation,1.e4 e5 2.Nf3 d6 3.Bc4 Be7 4.c3
D00,46,"Queen Pawn Opening: Veresov Opening, Richter Attack",1.d4 d5 2.Nc3 Nf6 3.f3
C68,46,"Ruy Lopez: Exchange Variation, Alekhine Variation",1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.d4 exd4 6.Qxd4 Qxd4 7.Nxd4 Bd6
C47,45,"Four Knights Game: Italian Variation, Noa Gambit",1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bc4 Nxe4 5.Bxf7+
C40,45,Elephant Gambit: Maroczy Gambit,1.e4 e5 2.Nf3 d5 3.exd5 Bd6
D00,44,Blackmar-Diemer Gambit: Von Popiel Gambit,1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.Bg5
B20,44,"Sicilian Defense: Wing Gambit, Abrahams Variation",1.e4 c5 2.b4 cxb4 3.Bb2
B21,44,"Sicilian Defense: Smith-Morra Gambit, Accepted Pin Defense",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4
A06,44,Zukertort Opening: Tennison Gambit,1.Nf3 d5 2.e4
B15,44,Caro-Kann Defense: Rasa-Studier Gambit,1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.f3
C33,44,"King's Gambit: Accepted, Tartakower Gambit",1.e4 e5 2.f4 exf4 3.Be2
C56,43,"Italian Game: Scotch Gambit, Canal Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Nxe4 6.Re1 d5 7.Nc3
A00,42,Polish Opening: German Defense,1.b4 d5 2.Bb2 Qd6
C57,42,"Italian Game: Two Knights Defense, Lolli Attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.d4
C17,39,"French Defense: Winawer Variation, Advance Variation",1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 cxd4 6.axb4 dxc3 7.Nf3
C14,39,"French Defense: Classical Variation, Pollock Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Qg4
A38,39,"English Opening: Symmetrical Variation, Double Fianchetto",1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.b3
A00,38,Van Geet Opening: Gruenfeld Defense,1.Nc3 d5 2.e4 dxe4 3.Nxe4 e5
B21,38,"Sicilian Defense: Smith-Morra Gambit, Accepted Morphy Defense",1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bc5
B40,37,"Sicilian Defense: Pin Variation, Jaffe Variation",1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.Bd3 e5
C12,37,"French Defense: MacCutcheon Variation, Tartakower Variation",1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bd2 Nfd7
C32,37,"King's Gambit: Falkbeer Countergambit, Charousek Gambit Keres Variation",1.e4 e5 2.f4 d5 3.exd5 e4 4.d3 Nf6 5.Nd2
C44,36,"Scotch Game: Scotch Gambit, London Defense",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bb4+
B01,36,Scandinavian Defense: Kiel Variation,1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.c4 Nb4
B22,35,"Sicilian Defense: Alapin Variation, Barmen Defense Endgame Variation",1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 cxd4 5.cxd4 Nc6 6.Nf3 Bg4 7.Nc3 Bxf3 8.gxf3 Qxd4 9.Qxd4 Nxd4
C01,34,French Defense: Mediterranean Defense,1.e4 e6 2.d4 Nf6
D00,34,"Blackmar-Diemer Gambit: Bogoljubow Variation, Studier Attack",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.O-O O-O 8.Qe1
B01,33,"Scandinavian Defense: Main Lines, Leonhardt Gambit",1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.b4
C41,32,"Philidor Defense: Lion Variation, Bishop Sac",1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.Bxf7+
A80,31,Dutch Defense: Janzen-Korchnoi Gambit,1.d4 f5 2.h3 Nf6 3.g4
C44,30,"Scotch Game: Scotch Gambit, Saratt Variation",1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bc5 5.Ng5
A40,30,"Englund Gambit: Declined, Reversed French",1.d4 e5 2.e3
C32,29,"King's Gambit: Falkbeer Countergambit, Charousek Gambit Main Line",1.e4 e5 2.f4 d5 3.exd5 e4 4.d3 Nf6 5.dxe4 Nxe4 6.Nf3 Bc5 7.Qe2 Bf5
C34,28,"King's Gambit: Accepted, MacLeod Defense",1.e4 e5 2.f4 exf4 3.Nf3 Nc6
C40,28,"Latvian Gambit: Mayet Attack, Polerio-Svedenborg Variation",1.e4 e5 2.Nf3 f5 3.Bc4 fxe4 4.Nxe5 d5
A00,28,"Grob Opening: Grob Gambit, Fritz Gambit",1.g4 d5 2.Bg2 Bxg4 3.c4
C20,27,King Pawn Game: Wayward Queen Attack,1.e4 e5 2.Qh5
C41,27,Philidor Defense: Alapin-Blackburne Gambit,1.e4 e5 2.Nf3 d6 3.d4 Bg4 4.dxe5 Nd7
C00,26,French Defense: Diemer-Duhm Gambit,1.e4 e6 2.d4 d5 3.c4 dxe4
E00,26,Amar Opening,1.Nh3
D00,26,Blackmar-Diemer Gambit: Zeller Defense,1.d4 d5 2.e4 dxe4 3.Nc3 Bf5
B13,25,"Caro-Kann Defense: Panov Attack, Gunderam Attack",1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.c5
C54,23,"Italian Game: Classical Variation, Greco Gambit Greco Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O Nxc3
A00,23,Kadas Opening,1.h4
C21,23,"Danish Gambit: Accepted, Schlechter Defense",1.e4 e5 2.d4 exd4 3.c3 dxc3 4.Bc4 cxb2 5.Bxb2 d5
D00,22,"Blackmar-Diemer Gambit: Declined, Langeheinecke Defense",1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 e3
D32,21,Tarrasch Defense: Von Hennig Gambit,1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 cxd4 5.Qxd4 Nc6 6.Qd1 exd5 7.Qxd5 Be6
C40,20,King Pawn Game: Damiano Defense,1.e4 e5 2.Nf3 f6
C50,20,"Italian Game: Hungarian Defense, Tartakower Variation",1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7 4.d4 exd4 5.c3 Nf6 6.e5 Ne4
C33,18,"King's Gambit: Accepted, Polerio Gambit",1.e4 e5 2.f4 exf4 3.d4
B32,12,Sicilian Defense: Franco-Scilian Variation,1.e4 c5 2.Nf3 Nc6 3.d4 e6
C57,11,"Italian Game: Two Knights Defense, Fried Liver Attack",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.Nxf7
C44,11,Scotch gambit,1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bb4+ 5.c3 dxc3 6.bxc3
C44,10,Scotch Game: Lolli Variation,1.e4 e5 2.Nf3 Nc6 3.d4 Nxd4
C50,9,Italian Game: Schilling-Kostic Gambit,1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4
C55,9,"Italian Game: Scotch Gambit, Declined",1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 d6
B00,8,Caro-Kann Defense: Hillbilly Attack,1.e4 c6 2.Bc4
C40,4,King Pawn Game: Busch-Gass Gambit,1.e4 e5 2.Nf3 Bc5
C62,2,"Ruy Lopez: Steinitz Defense, Center Gambit",1.e4 e5 2.Nf3 Nc6 3.Bb5 d6 4.d4 exd4 5.O-O