API tools faq
paste
Advertisement
yurikvelo

TCEC Season 7 - Stage 4 | Round 8 | 2014.12.05

yurikvelo
Dec 6th, 2014
351
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
text 7.56 KB | None | 0 0
raw download clone embed print report
  1. Houdini 4 (3195) vs Stockfish 301114 (3222) 1-0
  2. TCEC Season 7 - Stage 4 | Round 8 | 2014.12.05
  3. http://tcec.chessdom.com/archive.php?se=7&st=4&ga=15
  4. Caro-Kann: Two Knights, 3...Bg4 4.h3 Bh5, 7.g4 Bg6
  5.  
  6.  
  7. Stockfish 171114 @ D=39/81, 65.8 BN
  8. 1. +/= (0.42): 14...Qb6 15.Nb5 Bb4+ 16.c3 a6 17.cxb4 Qxb5 18.Qxb5 axb5 <-- H4 PV & K8 best line
  9. 2. +/= (0.46): 14...Nf6 15.Bd2 Be7 16.0-0-0 Qxd4 17.Be3 Qe5 18.Qf3 Qc7
  10. 3. +/= (0.48): 14...Rb6 15.Ne4 Be7 16.c3 Nf6 17.f3 Qc7 18.Qh2 Qc6 <-- SF play (eval 0.44 @ D=34, 3439 MN)
  11.  
  12. Komodo 8 @ D=33, 57.5 BN
  13. 1. = (0.18): 14...Qb6 15.Nb5 Bb4+ 16.c3 a6 17.cxb4 Qxb5 18.Qxb5 axb5 <-- H4 PV
  14. 2. +/= (0.35): 14...Rb6 15.d5 Nf6 16.dxe6 Bb4 17.e7+ Qxe7 18.Qxe7+ Kxe7 <-- SF play
  15.  
  16. ==================================================================================================
  17. Analyze position after 14...Qb6 15.Nb5 Bb4+ 16.c3 a6 17.cxb4 Qxb5 18.Qxb5 axb5
  18.  
  19. Stockfish 171114 @ D=36, 3300 MN
  20. 1. +/= (0.51): 19.Be3 Ne7 20.Kd2 f6 21.Rac1 Nd5 22.Rc5 Rxc5 23.bxc5 g5 (0.44 @ D=34, 0.48 @ D=40, 0.51 @ D=44 **)
  21. 2. +/= (0.39): 19.Bd2 Nf6 20.Ke2 Ke7 21.Kd3 Rc4 22.a3 Rd8 23.Be3 e5
  22. 3. +/= (0.38): 19.Ke2 Nf6 20.Bd2 Ke7 21.Kd3 Rd8 22.Be3 e5 23.Rac1 e4+
  23.  
  24. Komodo 8 @ D=28
  25. 1. = (0.23): 19.Ke2 Nf6 20.Bd2 Ke7 21.a3 Rc2 22.Kd3 Rc4 23.Be3 Kd6 (0.18 @ D=33, 0.23 @ D=42 **)
  26. 2. = (0.23): 19.Be3 Ne7 20.Kd2 f5 21.a3 Nd5 22.Bg5 Nb6 23.Kd3 Kf7
  27. 3. = (0.22): 19.Bd2 f6 20.Ke2 Kf7 21.Rac1 Ne7 22.Rc5 b6 23.Rxc6 Nxc6
  28.  
  29. ** virtual Depth adjusted to 14. .. Rb6
  30. ==================================================================================================
  31. Analyze position after 19.Be3 Ne7 20.Kd2 (common part of best PV both for SF & K8)
  32.  
  33. Komodo 8 @ D=24
  34. 1. = (0.19): 20...f5 21.Rac1 Nd5 22.Rxc6 bxc6 23.Bg5 Nxb4
  35. 2. = (0.22): 20...Rc4 21.a3 Nd5 22.Kd3 Ke7 23.Rac1 Rhc8
  36. 3. = (0.24): 20...Nd5 21.a3 Ke7 22.Rac1 Rxc1 23.Kxc1 f6
  37. 4. +/= (0.26): 20...f6 21.h4 Nd5 22.a3 Ke7 23.Kd3 Rc4
  38.  
  39. Stockfish 171114 @ D=30
  40. 1. +/= (0.45): 20...Rc4 21.Rac1 Nd5 22.a3 Ke7 23.Kd3 Nxe3
  41. 2. +/= (0.45): 20...Nd5 21.a3 Ke7 22.Kd3 Rc4 23.Rac1 Nxe3
  42. 3. +/= (0.65): 20...f6 21.h4 Rd6 22.Rac1 Nc6 23.Rc5 g5
  43. 4. +/= (0.65): 20...f5 21.a3 Rc4 22.Kd3 Kf7 23.Rac1 Rxc1
  44.  
  45. Analysis by Houdini 4 @ D=28, 953 MN
  46. 1. +/= (0.32): 20...f6 21.Rac1 Nd5 22.Rc5 Rxc5 23.bxc5 g5
  47. 2. +/= (0.38): 20...f5 21.a3 Kf7 22.f3 Nd5 23.Bg5 Nb6
  48. 3. +/= (0.42): 20...Nd5 21.a3 Ke7 22.Kd3 Rc4 23.h4 Rd8
  49.  
  50. Here we see that 20...f5 evaluates completely different 0.19 (Komodo) and 0.65 (Stockfish)
  51. ==================================================================================================
  52. Analyze position after 20.Kd2 f5
  53. 5k1r/1p2n1p1/2r1p1p1/1p3p2/1P1P2P1/4B2P/PP1K1P2/R6R w - f6 0 21
  54.  
  55. Analysis by Stockfish 171114 @ D=26
  56. 1. +/= (0.61): 21.a3 Kf7 22.f3 Rc4 23.Rac1 Nd5 24.Rxc4 bxc4
  57. 2. +/= (0.48): 21.f3 Nd5 22.a3 f4 23.Bf2 Kf7 24.h4 Rc4
  58. 3. +/= (0.44): 21.Kd3 Kf7 22.a3 Rd6 23.Ke2 Rc6 24.Kf3 Nd5
  59. 4. = (0.24): 21.Rac1 Nd5 22.Rxc6 bxc6 23.Bg5 Nxb4 24.h4 Ke8
  60.  
  61. the same position is evaluated comletely different by Komodo
  62. Analysis by Komodo 8 @ D=24
  63. 1. = (0.21): 21.a3 Nd5 22.Kd3 f4 23.Bd2 g5 24.Rac1 Rxc1
  64. 2. = (0.17): 21.f3 Nd5 22.a3 f4 23.Bf2 Kf7 24.Rac1 Rc4
  65. 3. = (0.17): 21.Kd3 Rd6 22.Rac1 Nc6 23.Ke2 Kf7 24.Kf3 Nxd4+
  66. 4. = (0.00): 21.Bg5 Rd6 22.Bxe7+ Kxe7 23.Ke3 g5 24.Rac1 Kf6
  67. ==================================================================================================
  68. Analyze position after 21.a3 Kf7
  69. 7r/1p2nkp1/2r1p1p1/1p3p2/1P1P2P1/P3B2P/1P1K1P2/R6R w - - 0 22
  70.  
  71. Analysis by Komodo 8 @ D=22
  72. 1. +/= (0.29): 22.Kd3 Nd5 23.h4 fxg4 24.Rag1 Rhc8 25.Rc1 Rc4
  73. 2. = (0.25): 22.Rab1 Nd5 23.Kd3 f4 24.Bd2 g5 25.Rbc1 Rxc1
  74. 3. = (0.25): 22.Rad1 Nd5 23.Kd3 f4 24.Bd2 g5 25.Rc1 Rxc1
  75. 4. = (0.19): 22.f3 Nd5 23.Bg5 Nb6 24.Kd3 Rd6 25.Bf4 Rd7
  76. 5. = (0.05): 22.h4 fxg4 23.Rac1 Nf5 24.Kd3 Rxh4 25.Rxh4 Rxc1
  77. 6. = (0.00): 22.Ke2 Rc2+ 23.Kd3 Rxb2 24.Kc3 Re2 25.Kd3 Rb2
  78.  
  79. Stockfish 171114 @ D=26
  80. 1. +/= (0.69): 22.f3 Nd5 23.Bg5 Rc4 24.Kd3 Nf6
  81. 2. +/= (0.46): 22.Rad1 Rd6 23.Ke2 Nc6 24.gxf5 gxf5
  82. 3. +/= (0.43): 22.Rab1 Rd6 23.Ke2 Nc6 24.Rbd1 Rd5
  83. 4. +/= (0.39): 22.Rag1 Rd6 23.Ke2 Nc6 24.Rd1 Rhd8
  84. 5. +/= (0.36): 22.Kd3 Rd6 23.Rac1 Nc6 24.Rc5 b6
  85. 6. +/= (0.36): 22.Raf1 Nd5 23.Kd3 Rc4 24.Rc1 Rxc1
  86. 7. +/= (0.34): 22.Rae1 Rd6 23.Ke2 Nc6 24.Rd1 Rhd8
  87. 8. = (0.25): 22.Bf4 Nd5 23.Bg5 Nf6 24.Kd3 Rd8
  88. 9. = (0.22): 22.h4 fxg4 23.Kd3 Nf5 24.Rag1 Rhc8
  89. 10. = (0.17): 22.gxf5 gxf5 23.f3 Rd6 24.Ke2 Nc6
  90. 11. = (0.08): 22.Bg5 Rc4 23.Ke3 Rc2 24.Rab1 Nd5+
  91. 12. = (0.00): 22.Ke2 Rc2+ 23.Kd3 Rxb2 24.Kc3 Re2
  92. ==================================================================================================
  93. Analyze position after 22.f3 Nd5 23.Bg5
  94. 7r/1p3kp1/2r1p1p1/1p1n1pB1/1P1P2P1/P4P1P/1P1K4/R6R b - - 0 23
  95.  
  96. Stockfish 171114 @ D=31
  97. 1. +/- (0.73): 23...Rc4 24.Kd3 Nf6 25.gxf5 gxf5 26.Rac1 Rhc8
  98. 2. +/- (0.73): 23...Nf6 24.Kd3 Rc4 25.gxf5 gxf5 26.Rac1 Rhc8
  99. 3. +/- (0.77): 23...Rc7 24.Rac1 Rc4 25.Kd3 Rhc8 26.h4 R8c6
  100. 4. +/- (0.80): 23...Rcc8 24.Rac1 Rc4 25.Kd3 Rhc8 26.h4 R8c6
  101. 5. +/- (0.80): 23...Nb6 24.Kd3 Nc4 25.Rh2 Rd6 26.Re1 Rd7
  102.  
  103. Komodo 8 @ D=27
  104. 1. +/= (0.36): 23...Nb6 24.Kd3 Nc4 25.Rh2 Rd6 26.Re1 Rd7
  105. 2. +/= (0.39): 23...Rhc8 24.Kd3 Rc4 25.Rhe1 Rh8 26.h4 Rhc8
  106. 3. +/= (0.40): 23...Rc4 24.Kd3 Rhc8 25.Rhe1 Rh8 26.h4 Rhc8
  107. ==================================================================================================
  108. Analyze position after 23...Nb6 24.Kd3 Nc4 25.Rh2 Rd6 26.Re1 Rd7 - common PV (+0.36 by K8, +0.80 by SF)
  109. 7r/1p1r1kp1/4p1p1/1p3pB1/1PnP2P1/P2K1P1P/1P5R/4R3 w - - 0 27
  110.  
  111. Komodo 8 @ D=26
  112. 1. +/= (0.54): 27.h4 e5 28.b3 Ra8 29.Bc1 e4+ 30.Kc3 Nd6
  113. 2. +/= (0.30): 27.b3 Nb6 28.Kc3 Nd5+ 29.Kb2 Nf6 30.Re5 fxg4
  114. 3. = (0.22): 27.gxf5 gxf5 28.h4 e5 29.b3 e4+ 30.Kc2 Nd6
  115.  
  116. Stockfish 171114 @ D=29
  117. 1. +/- (0.89): 27.h4 e5 28.Kc2 Rc8 29.b3 Nd6+ 30.Kb2 exd4
  118. 2. +/= (0.69): 27.gxf5 gxf5 28.h4 e5 29.Kc2 exd4 30.Kd3 g6
  119. 3. +/= (0.62): 27.b3 Nb6 28.h4 Ra8 29.Bc1 Rad8 30.Bb2 Nd5
  120. ==================================================================================================
  121. Let check if 21.a3 Nd5 (Komodo .. Nd5 for black, Kf7 was 0.29 vs 0.21 and raise to 0.54 at Move 27 +D=26) is drawish
  122. 22. Kd3
  123. Komodo 8 @ Depth: 32 576mN, tb=12 744
  124. = (0.24) 22...f4 23.Bd2 g5 24.Rac1 Rxc1 25.Bxc1 Nf6 26.f3 Nd5 27.Bd2 Kf7
  125.  
  126. After 22...f4 23.Bd2 g5 24.Rac1 Rxc1 25.Bxc1
  127. Komodo 8 @ Depth: 35 1 586mN, tb=495 635 [syzygy 6-men]
  128. = (0.22) 25...Kf7 26.Bd2 Kg6 27.Bc3 Kf6 28.f3 Ne3 29.Be1 Kf7 30.Bd2 Nd5
  129.  
  130. Komodo 8 @ Depth: 31 227mN, tb=14 542
  131. = (0.18) 31.Bc3 Nb6 32.Rh2 Nd5 33.Bd2 Kf6 34.Be1 Rc8 35.Bc3 Rh8
  132.  
  133. Komodo 8 @ Depth: 30 103mN, tb=38 000
  134. = (0.00) 36.Ke4 Kf7 37.Ke5 Rc8 38.Bd2 Rh8 39.Ke4 Kf6 40.Kd3 Kf7
  135. Look like drawish fortress
  136.  
  137. ==================================================================================================
  138. SUMMARY:
  139. Stockfish avoided best (drawish) move 14...Qb6 and played losing line 14...Rb6
  140. (no better moves for black between 15 and 20, and eval go beyond 0.8 after 20th move)
  141.  
  142. Misevaluated position after 18.Qxb5 axb5 is:
  143. 5knr/1p3pp1/2r1p1p1/1p6/1P1P2P1/7P/PP3P2/R1B1K2R w KQ - 0 19
  144.  
  145. Stockfish evaluate this ~+0.5 while the same TOP-3 moves Komodo evaluate ~+0.23
  146.  
  147. this position can be narrowed to position after 19.Be3 Ne7 20.Kd2
  148. 5k1r/1p2npp1/2r1p1p1/1p6/1P1P2P1/4B2P/PP1K1P2/R6R b - - 0 20
  149.  
  150. and even more to 20.Kd2 f5
  151. 5k1r/1p2n1p1/2r1p1p1/1p3p2/1P1P2P1/4B2P/PP1K1P2/R6R w - f6 0 21
  152.  
  153. Stockfish evaluate this position as very good for white (that's why SF avoided 14...Qb6)
  154. While Komodo & Houdini treat this very drawish.
  155.  
  156. 14...Qb6 lead to drawish fortress, but for SF there is other caveat: SF prefer 21. .. Kf7 leading to eval >0.5 after 27 move
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!