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Garry Kasparov - Veselin Topalov, Hoogovens A Tournament 199

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Nov 18th, 2015
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  1. Garry Kasparov - Veselin Topalov, Hoogovens A Tournament 1999
  2. http://www.chessgames.com/perl/chessgame?gid=1011478
  3.  
  4. Claim 1: none of H4, K or SF can find Rxd4 move
  5. Claim 2: 24. Rxd4 is one of best moves in Kasparov's career and is "winning solution" for position after 23. .. Qd6
  6.  
  7. ==========
  8. 18.11.2015 13:40 - TCEC ChatWING
  9. world-number-1: But the shocking truth is that chess engines may do well in most positions, but Kasrarov spotted a seemingly impossible move in one position which even Komodo, SF and Houdini 4 pro could'nt spot.
  10.  
  11. world-number-1 : No engine found that move, no engines and no humans except Kasparov.
  12.  
  13. world-number-1 : That position was so very much complicated that all the top engines including the current top three engines got confused and showed wrong moves and evaluations.
  14. Kasparov himself said that, that game was the best game of his life
  15.  
  16. world-number-1 : That move proved that chess engines are still not good enough to compete with human masterminds.
  17. The reason why chess engines are able to beat GM'S is that GM's don't play the whole game with a constant strength. The strength decreases after playing continuously for more than 2 hours, but chess engines never get tired. So, they play at a constant strength. This is the basic difference.
  18.  
  19. Nikolaos Konstantakis : Yes Gull solves it, other engines i checked dont solve it
  20.  
  21. world-number-1: I didn't check the position with Gull, but all the top 3 engines failed to solve it.
  22.  
  23. janetjackson808: SF finds kasparov Rxd4 within 1min 44 sec on my dual core, arena 32 bit
  24.  
  25. Nikolaos Konstantakis: There are many positions though, where engines are blind
  26. ================
  27.  
  28.  
  29.  
  30. Analysis by Komodo 9.2, D=19
  31. 1. =/+ (-0.43): 24.Rxd4 Kb6 25.b4 Qxf4 <---- Kasparov played
  32. 2. =/+ (-0.49): 24.Nc6+ Bxc6 25.Qxd6 Rxd6
  33. 3. =/+ (-0.62): 24.Qxd6 Rxd6 25.Nc6+ Kb6
  34. 4. -/+ (-1.35): 24.c4 Qxf4 25.gxf4 Rde8
  35.  
  36. Analysis by Komodo 9.2, D=24, 600 MN
  37. 1. =/+ (-0.47): 24...Kb6 25.b4 Qxf4 26.Rxf4 Nxd5 27.Rxf7 cxb4
  38. 2. = (0.00): 24...g5 25.Qd2 cxd4 26.Qxd4+ Qb6 27.Re7+ Nd7
  39. 3. = (0.00): 24...cxd4 25.Re7+ Kb6 26.Qxd4+ Kxa5 27.b4+ Ka4 <---- Topalov played
  40. 4. = (0.00): 24...Rhe8 25.Rxe8 Nxe8 26.Qxf7+ Kb6 27.Nc6 Bxc6
  41.  
  42. Analysis by Komodo 9.2, D=26, 240 MN:
  43. 1. = (0.24): 30...Rhe8 31.Rb6 Ra8 32.Rc6 Re2 33.Rc5 Qd1+
  44. 2. +/= (0.61): 30...Qc4 31.Qxf6 Rd1+ 32.Kb2 Ra8 33.Qb6 Qd4+ <---- Topalov played
  45. 3. +/- (0.90): 30...Ne4 31.fxe4 Qc4 32.Qe3 Rc8 33.Qc1 Qc3
  46. 4. +- (3.97): 30...Ng4 31.Rb6 Ra8 32.fxg4 Qc4 33.Qxh8 Qxb4+
  47.  
  48. Analysis by Komodo 9.2, D=23, 120 MN:
  49. 1. +/= (0.61): 31...Rd1+ 32.Kb2 Ra8 33.Qb6 Qd4+
  50. 2. +- (4.21): 31...Kxa3 32.Qxa6+ Kxb4 33.c3+ Kxc3 <---- Topalov played
  51. 3. +- (16.10): 31...a5 32.Ra7 Ra8 33.Qb6 Rxa7
  52. 4. +- (#12): 31...Ra8 32.Qb6 a5 33.Bd7 Rhd8
  53. ---------------------------------------------------------------------------
  54.  
  55. Analysis by Stockfish 171114, D=28, 169 MN
  56. 1. =/+ (-0.46): 24.Nc6+ Bxc6 25.Qxd6 Rxd6 26.dxc6 Kb6
  57. 2. =/+ (-0.52): 24.Qxd6 Rxd6 25.Nc6+ Kb6 26.Ne5 Bxd5
  58. 3. -/+ (-1.14): 24.Rxd4 cxd4 25.Re7+ Kb6 26.Qxd4+ Kxa5 <---- Kasparov played
  59. 4. -+ (-1.53): 24.c4 Qxf4 25.gxf4 Rhe8 26.b4 bxc4
  60.  
  61. Analysis by Stockfish 171114, D=29, 234 MN
  62. 1. =/+ (-0.50): 24.Nc6+ Bxc6 25.Qxd6 Rxd6 26.dxc6 Kb6
  63. 2. =/+ (-0.60): 24.Rxd4 Kb6 25.b4 Qxf4 26.Rxf4 Nxd5 <---- Kasparov played
  64. 3. =/+ (-0.66): 24.Qxd6 Rxd6 25.Nc6+ Kb6 26.Ne5 Bxd5
  65. 4. -+ (-1.58): 24.c4 Qxf4 25.gxf4 Rhe8 26.Bf1 bxc4
  66.  
  67. Analysis by Stockfish 171114, D=30, 356 MN
  68. 1. =/+ (-0.46): 24.Rxd4 Kb6 25.b4 Qxf4 26.Rxf4 Nxd5 <---- Kasparov played
  69. 2. =/+ (-0.53): 24.Nc6+ Bxc6 25.Qxd6 Rxd6 26.dxc6 Kb6
  70. 3. =/+ (-0.68): 24.Qxd6 Rxd6 25.Nc6+ Kb6 26.Ne5 Bxd5
  71. 4. -+ (-1.60): 24.c4 Qxf4 25.gxf4 Rhe8 26.b4 bxc4
  72.  
  73. Analysis by Stockfish 171114, D=34, 1326 MN
  74. 1. =/+ (-0.48): 24.Nc6+ Bxc6 25.Qxd6 Rxd6 26.dxc6 Kb6
  75. 2. =/+ (-0.50): 24.Rxd4 Kb6 25.b4 Qxf4 26.Rxf4 Nxd5 <-- Kasparov played
  76. 3. =/+ (-0.67): 24.Qxd6 Rxd6 25.Nc6+ Kb6 26.Ne5 Bxd5
  77. 4. -+ (-1.59): 24.c4 Qxf4 25.gxf4 Rhe8 26.b4 bxc4
  78.  
  79. ---------------------------------------------------------------------------
  80. Analysis by Houdini 4 Pro, D=21, 310 MN
  81. 1. =/+ (-0.35): 24.Nc6+ Bxc6 25.Qxd6 Rxd6 26.dxc6 Kb6
  82. 2. =/+ (-0.38): 24.Rxd4 Kb6 25.b4 Qxf4 26.Rxf4 Nxd5 <-- Kasparov played
  83. 3. =/+ (-0.66): 24.Qxd6 Rxd6 25.Nc6+ Kb6 26.Ne5 Rf8
  84. 4. -+ (-2.01): 24.Qd2 Nxd5 25.Bg2 Rhe8 26.Rxe8 Rxe8
  85.  
  86. ====================================================================
  87. Conclusion 1: all engines at home hardware evaluate Rxd4 correct eval (close to Nc6+) in less than 1 minute.
  88.  
  89. Conclusion 2: Rxd4 is still not winning move, leaving black chances to win if not taking "poisoned Rook"
  90. Kasparov won game due to Topalov mistakes: 24. .. cxd4?? (Kb6! - hold pressure or 4 other drawish moves) and 26. Qc4?? (lose game in drawish position) and 31. Kxa3?? (fast resign
  91.  
  92. Conclusion 1a: engines not always prefer Rxd4 over Nc6+ (at lower D) because they do not blunder for black and do not play 24. .. cxd4? as Topalov did. It is still not very easy to realize Rook as poisoned. After 24.Rxd4, Houdini need D=20 (~100 MN) to avoid cxd4, Stockfish need D=19 (0.01 MN!) and Komodo 9.2 need D=21 (170 MN) - all values are given for clean Hash. At blitz time controls Houdini and Komodo might blunder and eat poisoned Rook.
  93.  
  94.  
  95. Analysis by Stockfish 171114, D=42, 100 BN
  96. 1. =/+ (-0.43): 24...Kb6 25.b4 Qxf4 26.Rxf4 Nxd5 27.Rxf7 cxb4 28.axb4 Nxb4
  97. 2. = (0.00): 24...Rhe8 25.Rxe8 Nxe8 26.Qxf7+ Kb6 27.Nc6 Bxc6 28.dxc6 Qxd4
  98. 3. = (0.00): 24...Rhf8 25.c4 cxd4 26.Qxd4+ Kb8 27.Re7 Nd7 28.Bxd7 Rxd7
  99. 4. = (0.00): 24...Rhg8 25.c4 cxd4 26.Qxd4+ Kb8 27.c5 Qc7 28.Qxf6 Rxd5
  100. 5. = (0.00): 24...Bxd5 25.Rxd5 Nxd5 26.Qxf7+ Nc7 27.Re6 Qd1+ 28.Ka2 Rd7
  101. 6. = (0.11): 24...g5 25.Qxd6 Rxd6 26.Rdd1 Rxd5 27.Rxd5 Bxd5 28.c4 bxc4
  102. 7. = (0.15): 24...Nxd5 25.Qxf7+ Kb8 26.Rdd1 c4 27.Re6 Qc7 28.Qxc7+ Nxc7
  103. 8. +/= (0.42): 24...Qxf4 25.Rxf4 Nxd5 26.Rxf7+ Kb6 27.Nb3 Rhe8 28.Rxe8 Rxe8
  104. 9. +/= (0.70): 24...Kb8 25.Qxd6+ Rxd6 26.Rf4 Bxd5 27.c4 Nh5 28.cxd5 Nxf4
  105. 10. +/- (0.86): 24...Bb7 25.Qxd6 Rxd6 26.Rdd1 Re8 27.Rxe8 Nxe8 28.Nxb7 Kxb7
  106. 11. +- (1.47): 24...h5 25.c4 g5 26.Qxd6 Rxd6 27.Re7+ Kb8 28.Rd2 g4
  107. 12. +- (1.95): 24...h6 25.c4 bxc4 26.Nxc4 Nxd5 27.Qxf7+ Qc7 28.Qxc7+ Nxc7
  108. 13. +- (2.85): 24...c4 25.Rxc4 Qxf4 26.Rxf4 Nxd5 27.Rxf7+ Kb8 28.c4 bxc4
  109. 14. +- (3.62): 24...Ne8 25.Qxf7+ Nc7 26.Re6 Rd7 27.Rxd6 Rxf7 28.Rd2 Ne8
  110. 15. +- (3.87): 24...b4 25.axb4 cxb4 26.Rxb4 Qxf4 27.Rxf4 Rhe8 28.Rxe8 Nxe8
  111. 16. +- (5.30): 24...cxd4 25.Re7+ Kb8 26.Qxd4 Nd7 27.Bxd7 Rxd7 28.Rxd7 Qxd7 <-- Topalov played
  112. 17. +- (6.18): 24...Ng4 25.Nc6+ Bxc6 26.dxc6 Qxf4 27.Rxf4 Nh6 28.Re7+ Ka8
  113.  
  114. *******************************
  115. LIST: Historical chess games analysis multiPV ----> http://pastebin.com/9psux9XU
  116. *******************************
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