Big difference in the evaluation between Stockfish 10 and Leela Chess Zero
Posted: Tue Jan 01, 2019 9:13 pm
A little over a year ago, nobody in this forum would have thought that any program or human would frequently defeat Stockfish positionally over the board. Its analysis power leaves no doubt of its first place among the computer programs.
But the appearance of Alpha Zero and Leela Chess Zero has changed things.
In the next game, the great disparity in the evaluation between Stockfish 10 and Leela Chess Zero shows the difference between the approaches of both.
Lc0 32374 played on RTX2070 and Sf10 on i7 4790S 6 cores, with 5 minutes plus 1 second per move.
This is the second position of the Balsa 25 Top Set, with thousands of games played between the best human players
[pgn][Event "Lc0_32374SF10x6Balsa25_5p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "4"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1-0"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "312"] [EventDate "2019.??.??"] [TimeControl "300+1"] [SetUp "1"] [FEN "r1bqkb1r/pp1p1ppp/2n1pn2/8/2PN4/2N5/PP2PPPP/R1BQKB1R w KQkq - 0 1"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "human"] [BlackType "human"] * [/pgn]
the initial evaluations show the equality of the the game: 6. e4 {0.35/13 6} Bb4 {0.36/27 20} 7. Nxc6 {0.31/13 3}
then 7... dxc6 {0.29/28 5} by Sf and Lc0 thinks to have some advantage 8. Qxd8+ {0.80/14 5}
after 13.h5 {0.84/11 13} Bb7 {0.00/26 5} 13... h6 was better to avoid 14.h6
[pgn][Event "Lc0_32374SF10x6Balsa25_5p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "4"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1-0"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "312"] [EventDate "2019.??.??"] [TimeControl "300+1"] [SetUp "1"] [FEN "r6r/pbkn1ppp/1pp1p2P/4P3/2P2B2/2P5/P4PP1/R3KB1R b KQ - 0 1"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "program"] [BlackType "human"] 1. ... * [/pgn]
while Sf assesses the position as equaled to slight disadvantage, Lc0 thinks that its advantage is increasing
14. h6 {1.05/10 8} g6 {0.00/29 2} 15. f3 {1.20/10 7} Rag8 {0.00/30 12} 16. Rd1 {1.56/10 9} Re8 {0.00/30 11} 17. Bd3 {1.78/11 8} Rhf8 {-0.01/27 4} 18. O-O {1.85/12 7} Ba6 {-0.43/29 9} 19. Rfe1 {2.26/13 6} Nc5 {-0.39/30 4}
after the change of rooks the control of the black squares by the good bishop is evident while the black bishop is bad
23. Red1 {2.67/15 5} Bc8 {-0.48/30 2} 24. Rxd7+ {4.06/14 8} Bxd7 {-0.91/28 9} 25. Be7 {4.25/13 3}
[pgn][Event "Lc0_32374SF10x6Balsa25_5p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "4"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1-0"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "312"] [EventDate "2019.??.??"] [TimeControl "300+1"] [SetUp "1"] [FEN "5r2/p1kbBp1p/1pp1p1pP/4P3/n1P5/2P2P2/P5P1/3R1BK1 b - - 1 1"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "program"] [BlackType "human"] 1. ... * [/pgn]
the sacrifice of the c3 pawn after 25..Rg8 {-1.17/31 21} 26. Kf2 {5.45/12 8} is the price to get a winning position that Lc0 takes more than 100 moves to turn into victory
[pgn][Event "Lc0_32374SF10x6Balsa25_5p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "4"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1-0"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "312"] [EventDate "2019.??.??"] [TimeControl "300+1"] 1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. e4 {0.35/13 6} Bb4 { 0.36/27 20} 7. Nxc6 {0.31/13 3} dxc6 {0.29/28 5} 8. Qxd8+ {0.80/14 5} Kxd8 { 0.04/1 0} 9. e5 {0.85/14 3} Nd7 {0.18/22 2} 10. Bf4 {0.84/13 4} Bxc3+ {0.29/25 4} 11. bxc3 {0.77/13 4} b6 {0.25/28 7} 12. h4 {0.75/12 5} Kc7 {0.00/27 13} 13. h5 {0.84/11 13} Bb7 {0.00/26 5} 14. h6 {1.05/10 8} g6 {0.00/29 2} 15. f3 { 1.20/10 7} Rag8 {0.00/30 12} 16. Rd1 {1.56/10 9} Re8 {0.00/30 11} 17. Bd3 { 1.78/11 8} Rhf8 {-0.01/27 4} 18. O-O {1.85/12 7} Ba6 {-0.43/29 9} 19. Rfe1 { 2.26/13 6} Nc5 {-0.39/30 4} 20. Bf1 {2.26/14 4} Rd8 {-0.61/29 7} 21. Rd4 { 2.31/13 3} Na4 {-0.61/34 15} 22. Bg5 {2.55/15 5} Rd7 {-0.67/34 2} 23. Red1 { 2.67/15 5} Bc8 {-0.48/30 2} 24. Rxd7+ {4.06/14 8} Bxd7 {-0.91/28 9} 25. Be7 { 4.25/13 3} Rg8 {-1.17/31 21} 26. Kf2 {5.45/12 8} Nxc3 {-1.50/29 12} 27. Bd6+ { 7.30/13 9} Kd8 {-1.50/29 4} 28. Rd3 {6.61/14 6} Na4 {-1.80/29 13} 29. Kg3 { 6.32/14 5} a6 {-1.66/29 10} 30. Rb3 {6.00/15 10} b5 {-1.50/29 6} 31. c5 { 6.73/11 10} Ke8 {-1.89/32 9} 32. f4 {7.11/12 4} f6 {-1.49/28 5} 33. exf6 { 6.25/12 4} Kf7 {-2.17/29 12} 34. Bd3 {5.86/12 15} Kxf6 {-1.09/29 1} 35. Bc2 { 5.65/12 8} Kf7 {-1.09/33 2} 36. Kh4 {5.65/12 0} Rd8 {-1.50/33 16} 37. Ra3 { 8.83/12 4} Bc8 {-1.60/27 2} 38. Bxa4 {8.99/13 3} bxa4 {-1.09/37 2} 39. Kg5 { 9.37/11 3} Rd7 {-1.09/41 2} 40. Rxa4 {9.51/10 3} Ra7 {-1.09/43 3} 41. Be5 { 10.06/9 7} Re7 {-1.09/42 2} 42. Kh4 {11.11/9 7} Rd7 {-1.09/38 2} 43. Rb4 { 10.94/10 9} Rb7 {-1.09/41 2} 44. Rd4 {10.72/10 2} Rd7 {-1.09/42 2} 45. Ra4 { 10.80/10 3} Ke7 {-1.09/42 2} 46. g4 {10.96/10 9} Kf7 {-1.09/45 3} 47. Rb4 { 10.19/10 5} Rb7 {-1.09/46 2} 48. Rd4 {9.86/10 3} Rd7 {-1.09/47 4} 49. Ra4 { 9.81/10 5} Re7 {-1.09/46 2} 50. a3 {9.77/10 4} Rd7 {-1.09/42 1} 51. Rb4 { 9.45/10 2} Rb7 {-1.09/45 2} 52. Rc4 {9.19/9 5} Rd7 {-1.09/45 2} 53. Rc1 { 9.28/9 4} Rb7 {-1.09/41 1} 54. Rc2 {9.02/8 4} Rd7 {-1.09/44 2} 55. a4 {9.41/8 2 } Ra7 {-1.09/38 2} 56. Rb2 {9.09/9 4} Rb7 {-1.09/47 2} 57. Rd2 {8.47/9 2} Rd7 { -1.09/47 16} 58. Rb2 {8.35/9 2} Rb7 {-1.09/51 2} 59. Rf2 {8.28/9 4} Rd7 { -1.09/45 2} 60. Rf3 {8.58/9 3} Ra7 {-1.09/44 2} 61. Rb3 {8.47/8 3} Rb7 { -1.09/46 2} 62. Rf3 {8.13/9 3} Rd7 {-1.09/46 1} 63. Rf1 {7.88/8 2} Re7 { -1.09/43 1} 64. Rb1 {7.71/8 3} Rb7 {-1.09/43 1} 65. Rf1 {7.66/9 3} Rd7 { -1.09/46 1} 66. Rf3 {7.41/8 2} Rb7 {-1.09/47 1} 67. Rc3 {7.61/8 2} Ra7 { -1.09/45 1} 68. Rd3 {7.17/8 2} Rd7 {-1.09/50 1} 69. Rc3 {7.13/9 2} Rb7 { -1.09/48 3} 70. Re3 {7.22/8 2} Rd7 {-1.09/44 2} 71. Rb3 {6.71/8 2} Rb7 { -1.09/47 1} 72. Rf3 {6.73/9 2} Kg8 {-1.09/46 3} 73. Rd3 {7.74/9 1} Rd7 { -1.09/47 1} 74. Re3 {7.39/9 3} Kf7 {-1.09/48 1} 75. a5 {6.67/9 2} Re7 {-0.99/ 33 1} 76. Rd3 {7.45/8 2} Rd7 {-0.99/39 1} 77. Bd6 {6.32/9 2} Rb7 {-0.99/36 0} 78. Kg5 {5.88/9 2} Bd7 {-0.99/35 1} 79. Be5 {6.03/10 1} Ke7 {-0.99/38 0} 80. Bg7 {6.29/9 1} Kf7 {-0.99/38 1} 81. Rd6 {6.06/10 3} Ke7 {-0.99/36 2} 82. Rd4 { 5.78/10 2} Kf7 {-0.99/40 1} 83. Rd3 {5.40/10 2} Ke7 {-0.99/39 1} 84. Rd1 { 5.31/10 1} Kf7 {-0.99/39 1} 85. Rd6 {5.19/9 1} Ke7 {-0.99/40 4} 86. Rd2 { 4.86/9 1} Kf7 {-0.99/38 0} 87. Rd1 {4.56/9 1} Ke7 {-0.99/41 1} 88. Rd6 { 4.59/9 0} Kf7 {-0.99/38 0} 89. Bf6 {4.42/8 1} Ra7 {-0.99/40 1} 90. Be5 { 4.80/8 0} Ke7 {-0.99/41 2} 91. Bf6+ {4.45/8 0} Kf7 {-0.99/42 1} 92. Rd3 { 4.20/8 1} Rb7 {-0.99/43 0} 93. Rd2 {4.23/8 0} Ke8 {-0.99/42 0} 94. Bg7 { 3.89/8 1} Kf7 {-0.99/40 1} 95. Rd4 {3.72/8 1} Ke7 {-0.99/42 0} 96. Rd6 { 3.63/8 0} Rb4 {-0.99/40 1} 97. Bf6+ {3.71/9 0} Ke8 {-0.99/41 1} 98. Be5 { 3.61/10 1} Ke7 {-0.99/40 0} 99. Kh4 {3.18/9 0} Rc4 {-0.99/36 0} 100. Rd2 { 3.62/8 1} Rb4 {-0.99/39 1} 101. Bd6+ {3.55/8 0} Ke8 {-0.99/43 1} 102. Kg5 { 3.77/9 0} Kf7 {-0.99/39 0} 103. Be5 {3.86/9 0} Rb7 {-0.99/41 0} 104. Rd6 { 4.46/11 0} Ra7 {-1.33/41 6} 105. Kh4 {4.06/9 1} Ke7 {-0.99/33 0} 106. g5 { 5.60/9 1} Kf7 {-0.74/25 0} 107. Kg3 {9.57/8 1} Rb7 {-1.82/29 3} 108. Kf2 { 9.49/8 1} Ra7 {-2.35/30 2} 109. Ke3 {8.07/8 1} Rb7 {-2.37/31 1} 110. Ke2 { 8.51/8 0} Kg8 {-2.32/28 0} 111. Kd2 {7.54/7 1} Kf7 {-2.54/29 1} 112. Ke2 { 7.00/8 1} Ra7 {-2.44/29 0} 113. Kd3 {6.29/7 1} Rb7 {-2.55/27 1} 114. Kc3 { 6.13/8 1} Kg8 {-2.75/27 1} 115. Bf6 {5.76/8 0} Kf8 {-2.57/24 0} 116. Rd1 { 5.93/8 0} Kf7 {-3.40/25 1} 117. Kd4 {5.66/8 0} Rb5 {-2.70/21 0} 118. Ke4 { 5.99/9 0} Ke8 {-2.90/25 0} 119. Rc1 {5.85/9 0} Rxa5 {-3.07/25 1} 120. Ke5 { 8.34/9 0} Rb5 {-3.25/27 0} 121. Kd6 {12.51/9 0} Rb7 {-3.56/26 0} 122. f5 { 14.96/10 0} Kf7 {-2.86/19 0} 123. fxe6+ {16.36/9 0} Bxe6 {-3.34/22 1} 124. Kxc6 {17.13/8 0} Rb3 {-3.70/22 1} 125. Ra1 {19.06/7 2} Bf5 {-3.90/25 0} 126. Re1 { 19.51/7 1} Be6 {-4.33/23 1} 127. Kc7 {17.20/7 1} Rb4 {-4.75/25 0} 128. c6 { 19.71/7 1} Rb5 {-4.71/29 0} 129. Rd1 {18.67/7 0} Rd5 {-4.90/29 1} 130. Ra1 { 18.18/7 0} Rc5 {-4.71/24 0} 131. Kb6 {15.88/8 0} Rb5+ {-5.35/25 1} 132. Kxa6 { 15.80/8 0} Bc4 {-4.71/29 0} 133. Rc1 {17.79/8 0} Be2 {-5.46/22 1} 134. Ka7 { 23.37/7 1} Ra5+ {-5.82/27 0} 135. Kb6 {24.53/7 1} Rb5+ {-5.87/28 0} 136. Kc7 { 25.01/7 0} Rb3 {-5.87/28 0} 137. Ra1 {31.58/6 1} Ke6 {-5.92/26 0} 138. Kd8 { 32.28/6 1} Rb8+ {-5.92/24 1} 139. Kc7 {31.14/7 0} Rb3 {-5.92/28 0} 140. Ra8 { 23.14/7 1} Kd5 {-6.11/30 1} 141. Rd8+ {23.56/7 1} Kc5 {-6.64/25 1} 142. Be7+ { 22.48/7 1} Kc4 {-5.48/19 0} 143. Rh8 {24.82/6 1} Kd5 {-6.85/23 1} 144. Rxh7 { 25.85/7 0} Rc3 {-7.13/25 1} 145. Bf6 {34.36/6 0} Rxc6+ {-7.37/22 0} 146. Kd8 { 28.95/7 0} Ra6 {-7.67/24 1} 147. Rb7 {27.12/7 1} Ra3 {-6.96/20 0} 148. Ke7 { 44.11/6 1} Rh3 {-7.13/19 1} 149. Kf7 {63.23/6 1} Kc6 {-7.76/21 0} 150. Rb2 { 56.93/6 1} Bd3 {-7.86/19 0} 151. Kg7 {71.82/6 0} Bf5 {-11.54/22 1} 152. h7 { 55.34/6 1} Kc7 {-14.00/21 1} 153. h8=R {71.56/5 1} Ra3 {-7.77/18 0} 154. Rd2 { 66.70/5 1} Kc6 {-9.12/19 1} 155. Rd4 {49.56/5 1} Ra7+ {-9.21/16 0} 156. Kh6 { 57.61/6 0} Ra5 {adjudication} 1-0 [/pgn]
Repeating the game at 15 + 1, we see that the positional style of Lc0 does not always work even with exchange sacrifice 27. Rxd7+ {+4.92/19 9} Kxd7 {-1.46/38 25}. In the disparity of evaluations this time Sf10 was right.
[pgn][Event "Lc0_32374SF10x6Balsa2_15p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "1"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1/2-1/2"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "339"] [EventDate "2019.??.??"] [TimeControl "900+1"] [SetUp "1"] [FEN "4r3/p1kn1p1p/bp2p1pP/2p1P1K1/2P4B/2P2P2/P3B1P1/3R4 w - - 2 1"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "human"] [BlackType "human"] * [/pgn]
[pgn][Event "Lc0_32374SF10x6Balsa2_15p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "1"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1/2-1/2"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "339"] [EventDate "2019.??.??"] [TimeControl "900+1"] 1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. e4 {0.31/14 15} Bb4 { 0.21/30 22} 7. Nxc6 {0.28/15 8} dxc6 {0.28/28 6} 8. Qxd8+ {0.80/16 14} Kxd8 { 0.28/1} 9. e5 {0.79/16 8} Nd7 {0.19/26 9} 10. Bf4 {0.78/15 11} Bxc3+ {0.36/28 9 } 11. bxc3 {0.75/14 10} b6 {0.37/29 15} 12. h4 {0.76/14 10} Kc7 {0.00/28 15} 13. h5 {0.90/14 25} Bb7 {0.00/32 32} 14. h6 {1.22/12 24} g6 {0.00/33 18} 15. f3 {1.23/13 13} Rad8 {0.00/32 22} 16. Kf2 {1.29/12 28} Rhf8 {0.00/32 7} 17. Rd1 { 1.28/14 43} Nc5 {0.00/33 41} 18. Be2 {1.31/19 20} Rxd1 {0.00/38 6} 19. Rxd1 { 1.28/17 0} Na4 {0.00/41 23} 20. Rc1 {1.61/13 21} Ba6 {0.00/38 36} 21. Bg5 { 1.77/14 20} Re8 {0.00/36 6} 22. Kg3 {1.78/13 18} Nc5 {-0.41/38 65} 23. Kf4 { 1.70/11 26} Nd7 {-0.50/36 16} 24. Bh4 {1.59/10 37} Kb7 {-0.49/38 20} 25. Kg5 { 1.92/10 20} c5 {-0.51/39 14} 26. Rd1 {4.10/18 10} Kc7 {-0.51/38 9} 27. Rxd7+ { 4.92/19 9} Kxd7 {-1.46/38 25} 28. Kf6 {4.57/23 9} Re7 {-1.43/37 8} 29. Kg7 { 4.37/24 7} g5 {-1.53/39 11} 30. Bxg5 {4.17/25 3} f6+ {-1.73/41 37} 31. Kxf6 { 4.15/21 0} Ke8 {-1.62/45 13} 32. f4 {4.16/24 0} Kf8 {-1.73/44 16} 33. a3 { 4.18/20 0} Bc8 {-0.54/33 16} 34. Bh5 {4.13/17 25} Ba6 {-0.36/38 4} 35. Bh4 { 4.12/17 27} Bxc4 {-0.31/35 6} 36. g4 {4.12/15 6} Be2 {-0.46/40 12} 37. Bg3 { 4.05/14 59} Bf3 {-0.39/42 12} 38. f5 {4.42/12 24} Be2 {-0.64/43 29} 39. fxe6 { 7.34/16 13} Bd1 {-0.62/40 8} 40. Bf4 {6.74/13 15} Be2 {-0.50/48 35} 41. Bh2 { 6.68/14 21} a6 {-0.52/43 15} 42. Bg1 {7.29/14 12} Bd1 {-0.39/44 4} 43. Be3 { 7.22/14 11} Bf3 {-0.24/42 9} 44. Bf2 {7.30/14 13} Bd1 {-0.24/45 4} 45. Bg1 { 7.08/12 12} Bf3 {-0.24/46 8} 46. Be3 {7.11/14 8} Be2 {-0.24/46 6} 47. Bf2 { 6.83/13 16} Bd1 {-0.25/47 6} 48. Be3 {6.70/12 14} Be2 {-0.25/49 10} 49. Bc1 { 6.73/13 10} Bf3 {-0.25/45 11} 50. Bf4 {5.97/14 10} Be2 {-0.25/47 5} 51. Be3 { 6.59/11 8} Bd1 {-0.34/48 37} 52. Bf2 {6.69/11 8} Bf3 {-0.25/43 2} 53. Bg1 { 6.27/12 8} Bd1 {-0.25/47 5} 54. Bf2 {6.35/12 7} Bf3 {-0.37/45 10} 55. Bg3 { 5.83/14 12} Bd1 {-0.24/50 11} 56. Bf4 {5.98/12 10} Bf3 {-0.24/50 5} 57. Bc1 { 6.31/11 7} Be2 {-0.24/48 14} 58. Be3 {6.14/11 7} Bf3 {-0.24/50 5} 59. Bd2 { 6.01/12 8} Be2 {-0.14/38 8} 60. Bc1 {5.98/11 6} Bf3 {-0.24/44 4} 61. Bd2 { 5.99/12 4} Be2 {-0.14/41 2} 62. Be1 {5.90/13 5} Bd1 {-0.26/43 10} 63. Bg3 { 5.81/13 8} Bf3 {-0.24/41 3} 64. Be1 {5.92/12 6} Bd1 {-0.13/38 2} 65. Bh4 { 5.14/14 8} Be2 {-0.24/39 5} 66. Kf5 {3.87/18 6} Bd3+ {-0.24/41 5} 67. Kf6 { 3.75/18 0} Be2 {-0.24/44 3} 68. Bg3 {3.47/18 2} Bd1 {-0.14/36 2} 69. Bh2 { 3.50/15 10} Bf3 {-0.11/37 3} 70. Bf4 {3.90/14 4} Be2 {-0.10/38 2} 71. Bd2 { 3.51/15 6} Bf3 {-0.24/45 7} 72. Bc1 {2.78/17 5} Be2 {-0.09/39 3} 73. Bf4 { 2.99/15 8} Bf3 {-0.24/51 7} 74. a4 {2.57/16 5} a5 {-0.09/41 2} 75. c4 {2.19/16 6} Bd1 {-0.09/44 3} 76. Bd2 {1.99/16 5} Be2 {-0.09/42 2} 77. Bf4 {1.69/17 4} Bd1 {-0.09/46 4} 78. Bd2 {1.83/15 4} Be2 {-0.09/47 3} 79. Be3 {1.51/18 3} Bd1 { 0.00/44 2} 80. Bf4 {2.33/14 2} Be2 {0.00/47 4} 81. Bh2 {1.91/17 4} Bd1 { 0.00/49 3} 82. Bf4 {2.01/16 3} Be2 {-0.09/46 3} 83. Bg3 {1.92/16 2} Bf3 { -0.09/46 5} 84. Kf5 {2.09/14 5} Bd1 {-0.09/44 1} 85. Kf6 {1.61/17 3} Be2 { -0.09/46 2} 86. Bh2 {1.67/17 2} Bd1 {-0.09/39 2} 87. Bg3 {1.39/16 2} Bf3 { -0.09/48 2} 88. Be1 {1.76/15 5} Be2 {-0.09/48 4} 89. Bc3 {1.56/17 3} Bf3 { -0.09/42 2} 90. Bb2 {1.75/14 4} Bd1 {0.00/37 4} 91. Bc1 {1.82/14 1} Be2 { 0.00/46 2} 92. Be3 {1.48/18 4} Bd1 {-0.09/49 5} 93. Bc1 {1.68/15 2} Be2 { 0.00/49 1} 94. Bd2 {1.56/17 1} Bd1 {-0.09/50 2} 95. Be3 {1.72/15 4} Be2 { -0.09/49 2} 96. Bd2 {1.57/18 1} Bd1 {-0.09/51 2} 97. Be1 {1.59/15 3} Be2 { -0.09/49 3} 98. Bc3 {1.40/15 3} Bd1 {0.00/48 2} 99. Bb2 {1.24/17 2} Be2 { 0.00/50 4} 100. Ba1 {1.64/14 2} Bd1 {0.00/48 1} 101. Bb2 {1.41/15 1} Be2 { 0.00/52 3} 102. Bc1 {1.54/15 1} Bd1 {0.00/49 1} 103. Be3 {1.37/17 1} Be2 { 0.00/46 1} 104. Bg1 {1.07/18 4} Bd1 {0.00/50 1} 105. Bf2 {1.59/14 1} Be2 { 0.00/47 1} 106. Bh4 {1.47/15 2} Bd1 {-0.09/47 1} 107. Bf2 {1.41/18 2} Be2 { 0.00/47 4} 108. Be1 {1.43/17 0} Bf3 {-0.09/48 2} 109. Bg3 {1.43/14 1} Be2 { 0.00/45 0} 110. Bf2 {1.17/16 1} Bf3 {-0.09/50 3} 111. Kf5 {0.61/13 1} Bd1 { -0.09/47 1} 112. Bh4 {0.58/14 0} Bc2+ {-0.09/46 1} 113. Kf6 {0.47/14 0} Bd1 { -0.09/49 1} 114. Bg5 {0.41/13 0} Bxa4 {0.50/34 1} 115. Bc1 {0.32/14 1} Bd1 { 0.09/33 3} 116. Ba3 {-0.39/14 2} Be2 {0.00/34 2} 117. Bc1 {-0.45/15 0} a4 { 0.00/37 1} 118. Ba3 {-0.44/14 0} Bxc4 {0.00/37 0} 119. Bf7 {-0.44/14 0} Bb5 { 0.00/36 1} 120. g5 {0.33/12 1} Bd3 {0.00/39 0} 121. Bb2 {0.22/12 2} Be4 { 0.00/39 1} 122. Ba3 {0.17/12 0} Bb1 {0.00/38 1} 123. Bc1 {0.19/10 0} Ra7 { 0.00/38 0} 124. Ba3 {0.21/10 1} Bc2 {0.00/39 1} 125. Bc1 {0.21/10 1} Bd3 { 0.00/37 2} 126. Ba3 {0.21/10 0} Bc2 {0.00/42 0} 127. Bb2 {0.19/9 1} Bd3 { 0.00/40 0} 128. Bc1 {0.17/8 0} Re7 {0.00/40 1} 129. Ba3 {0.15/10 0} Bb1 { 0.00/43 1} 130. Bb2 {0.10/9 0} Be4 {0.00/41 1} 131. Bc1 {0.05/8 1} Ra7 { 0.00/41 0} 132. Ba3 {0.07/6 0} Rc7 {0.00/41 0} 133. Bc1 {0.13/8 1} Rb7 { 0.00/44 1} 134. Ba3 {0.18/9 0} Bd3 {0.00/44 1} 135. Bc1 {0.10/9 1} Re7 { 0.00/44 0} 136. Ba3 {0.04/6 0} Rc7 {0.00/42 0} 137. Bb2 {0.11/7 0} Be4 { 0.00/40 0} 138. Ba3 {0.13/9 0} Bb1 {0.00/44 0} 139. Bb2 {0.11/9 1} Re7 { 0.00/44 1} 140. Ba3 {0.06/7 0} Ra7 {0.00/44 0} 141. Bh5 {0.07/9 1} Bd3 { 0.00/45 1} 142. Bc1 {0.13/8 1} Rc7 {0.00/40 2} 143. Bf7 {0.09/6 0} Rb7 { 0.00/45 1} 144. Ba3 {0.13/9 0} Re7 {0.00/48 2} 145. Bc1 {0.08/6 0} Rc7 { 0.00/42 0} 146. Bb2 {0.13/7 1} Ra7 {0.00/48 4} 147. Ba3 {0.06/5 1} Be4 { 0.00/49 2} 148. Bh5 {0.10/7 0} Re7 {0.00/40 0} 149. Bf7 {0.06/6 0} Rb7 { 0.00/47 1} 150. Bb2 {0.06/6 1} Bb1 {0.00/44 1} 151. Ba3 {0.06/8 1} Bc2 { 0.00/45 0} 152. Bc1 {0.06/8 1} Re7 {0.00/51 2} 153. Ba3 {0.02/5 0} Rc7 { 0.00/48 1} 154. Bb2 {0.10/8 1} Bd3 {0.00/42 0} 155. Ba3 {0.06/6 1} Bb1 { 0.00/48 0} 156. Bb2 {0.07/8 0} Bd3 {0.00/49 1} 157. Bc1 {0.06/5 1} Rb7 { 0.00/42 0} 158. Ba3 {0.04/7 0} Bb1 {0.00/47 1} 159. Bc1 {0.04/6 0} Bc2 { 0.00/43 0} 160. Bh5 {0.00/8 1} Ra7 {0.00/44 1} 161. Bf7 {0.04/8 0} Rb7 { 0.00/41 1} 162. Bh5 {0.20/10 0} Be4 {0.00/41 0} 163. Be2 {0.40/10 1} Bg6 { 0.00/32 0} 164. Bb5 {0.48/10 0} Ra7 {0.00/34 0} 165. Bd7 {0.32/11 1} Kg8 { 0.00/29 0} 166. Ba3 {0.17/10 0} Rb7 {0.00/34 1} 167. Bc6 {0.08/8 1} Rc7 { 0.00/38 0} 168. Bb5 {0.07/6 0} Kf8 {0.00/39 0} 169. Bd7 {0.04/4 1} Kg8 { 0.00/41 0} 170. Ke7 {normal} 1/2-1/2 [/pgn]
But the appearance of Alpha Zero and Leela Chess Zero has changed things.
In the next game, the great disparity in the evaluation between Stockfish 10 and Leela Chess Zero shows the difference between the approaches of both.
Lc0 32374 played on RTX2070 and Sf10 on i7 4790S 6 cores, with 5 minutes plus 1 second per move.
This is the second position of the Balsa 25 Top Set, with thousands of games played between the best human players
[pgn][Event "Lc0_32374SF10x6Balsa25_5p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "4"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1-0"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "312"] [EventDate "2019.??.??"] [TimeControl "300+1"] [SetUp "1"] [FEN "r1bqkb1r/pp1p1ppp/2n1pn2/8/2PN4/2N5/PP2PPPP/R1BQKB1R w KQkq - 0 1"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "human"] [BlackType "human"] * [/pgn]
the initial evaluations show the equality of the the game: 6. e4 {0.35/13 6} Bb4 {0.36/27 20} 7. Nxc6 {0.31/13 3}
then 7... dxc6 {0.29/28 5} by Sf and Lc0 thinks to have some advantage 8. Qxd8+ {0.80/14 5}
after 13.h5 {0.84/11 13} Bb7 {0.00/26 5} 13... h6 was better to avoid 14.h6
[pgn][Event "Lc0_32374SF10x6Balsa25_5p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "4"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1-0"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "312"] [EventDate "2019.??.??"] [TimeControl "300+1"] [SetUp "1"] [FEN "r6r/pbkn1ppp/1pp1p2P/4P3/2P2B2/2P5/P4PP1/R3KB1R b KQ - 0 1"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "program"] [BlackType "human"] 1. ... * [/pgn]
while Sf assesses the position as equaled to slight disadvantage, Lc0 thinks that its advantage is increasing
14. h6 {1.05/10 8} g6 {0.00/29 2} 15. f3 {1.20/10 7} Rag8 {0.00/30 12} 16. Rd1 {1.56/10 9} Re8 {0.00/30 11} 17. Bd3 {1.78/11 8} Rhf8 {-0.01/27 4} 18. O-O {1.85/12 7} Ba6 {-0.43/29 9} 19. Rfe1 {2.26/13 6} Nc5 {-0.39/30 4}
after the change of rooks the control of the black squares by the good bishop is evident while the black bishop is bad
23. Red1 {2.67/15 5} Bc8 {-0.48/30 2} 24. Rxd7+ {4.06/14 8} Bxd7 {-0.91/28 9} 25. Be7 {4.25/13 3}
[pgn][Event "Lc0_32374SF10x6Balsa25_5p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "4"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1-0"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "312"] [EventDate "2019.??.??"] [TimeControl "300+1"] [SetUp "1"] [FEN "5r2/p1kbBp1p/1pp1p1pP/4P3/n1P5/2P2P2/P5P1/3R1BK1 b - - 1 1"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "program"] [BlackType "human"] 1. ... * [/pgn]
the sacrifice of the c3 pawn after 25..Rg8 {-1.17/31 21} 26. Kf2 {5.45/12 8} is the price to get a winning position that Lc0 takes more than 100 moves to turn into victory
[pgn][Event "Lc0_32374SF10x6Balsa25_5p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "4"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1-0"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "312"] [EventDate "2019.??.??"] [TimeControl "300+1"] 1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. e4 {0.35/13 6} Bb4 { 0.36/27 20} 7. Nxc6 {0.31/13 3} dxc6 {0.29/28 5} 8. Qxd8+ {0.80/14 5} Kxd8 { 0.04/1 0} 9. e5 {0.85/14 3} Nd7 {0.18/22 2} 10. Bf4 {0.84/13 4} Bxc3+ {0.29/25 4} 11. bxc3 {0.77/13 4} b6 {0.25/28 7} 12. h4 {0.75/12 5} Kc7 {0.00/27 13} 13. h5 {0.84/11 13} Bb7 {0.00/26 5} 14. h6 {1.05/10 8} g6 {0.00/29 2} 15. f3 { 1.20/10 7} Rag8 {0.00/30 12} 16. Rd1 {1.56/10 9} Re8 {0.00/30 11} 17. Bd3 { 1.78/11 8} Rhf8 {-0.01/27 4} 18. O-O {1.85/12 7} Ba6 {-0.43/29 9} 19. Rfe1 { 2.26/13 6} Nc5 {-0.39/30 4} 20. Bf1 {2.26/14 4} Rd8 {-0.61/29 7} 21. Rd4 { 2.31/13 3} Na4 {-0.61/34 15} 22. Bg5 {2.55/15 5} Rd7 {-0.67/34 2} 23. Red1 { 2.67/15 5} Bc8 {-0.48/30 2} 24. Rxd7+ {4.06/14 8} Bxd7 {-0.91/28 9} 25. Be7 { 4.25/13 3} Rg8 {-1.17/31 21} 26. Kf2 {5.45/12 8} Nxc3 {-1.50/29 12} 27. Bd6+ { 7.30/13 9} Kd8 {-1.50/29 4} 28. Rd3 {6.61/14 6} Na4 {-1.80/29 13} 29. Kg3 { 6.32/14 5} a6 {-1.66/29 10} 30. Rb3 {6.00/15 10} b5 {-1.50/29 6} 31. c5 { 6.73/11 10} Ke8 {-1.89/32 9} 32. f4 {7.11/12 4} f6 {-1.49/28 5} 33. exf6 { 6.25/12 4} Kf7 {-2.17/29 12} 34. Bd3 {5.86/12 15} Kxf6 {-1.09/29 1} 35. Bc2 { 5.65/12 8} Kf7 {-1.09/33 2} 36. Kh4 {5.65/12 0} Rd8 {-1.50/33 16} 37. Ra3 { 8.83/12 4} Bc8 {-1.60/27 2} 38. Bxa4 {8.99/13 3} bxa4 {-1.09/37 2} 39. Kg5 { 9.37/11 3} Rd7 {-1.09/41 2} 40. Rxa4 {9.51/10 3} Ra7 {-1.09/43 3} 41. Be5 { 10.06/9 7} Re7 {-1.09/42 2} 42. Kh4 {11.11/9 7} Rd7 {-1.09/38 2} 43. Rb4 { 10.94/10 9} Rb7 {-1.09/41 2} 44. Rd4 {10.72/10 2} Rd7 {-1.09/42 2} 45. Ra4 { 10.80/10 3} Ke7 {-1.09/42 2} 46. g4 {10.96/10 9} Kf7 {-1.09/45 3} 47. Rb4 { 10.19/10 5} Rb7 {-1.09/46 2} 48. Rd4 {9.86/10 3} Rd7 {-1.09/47 4} 49. Ra4 { 9.81/10 5} Re7 {-1.09/46 2} 50. a3 {9.77/10 4} Rd7 {-1.09/42 1} 51. Rb4 { 9.45/10 2} Rb7 {-1.09/45 2} 52. Rc4 {9.19/9 5} Rd7 {-1.09/45 2} 53. Rc1 { 9.28/9 4} Rb7 {-1.09/41 1} 54. Rc2 {9.02/8 4} Rd7 {-1.09/44 2} 55. a4 {9.41/8 2 } Ra7 {-1.09/38 2} 56. Rb2 {9.09/9 4} Rb7 {-1.09/47 2} 57. Rd2 {8.47/9 2} Rd7 { -1.09/47 16} 58. Rb2 {8.35/9 2} Rb7 {-1.09/51 2} 59. Rf2 {8.28/9 4} Rd7 { -1.09/45 2} 60. Rf3 {8.58/9 3} Ra7 {-1.09/44 2} 61. Rb3 {8.47/8 3} Rb7 { -1.09/46 2} 62. Rf3 {8.13/9 3} Rd7 {-1.09/46 1} 63. Rf1 {7.88/8 2} Re7 { -1.09/43 1} 64. Rb1 {7.71/8 3} Rb7 {-1.09/43 1} 65. Rf1 {7.66/9 3} Rd7 { -1.09/46 1} 66. Rf3 {7.41/8 2} Rb7 {-1.09/47 1} 67. Rc3 {7.61/8 2} Ra7 { -1.09/45 1} 68. Rd3 {7.17/8 2} Rd7 {-1.09/50 1} 69. Rc3 {7.13/9 2} Rb7 { -1.09/48 3} 70. Re3 {7.22/8 2} Rd7 {-1.09/44 2} 71. Rb3 {6.71/8 2} Rb7 { -1.09/47 1} 72. Rf3 {6.73/9 2} Kg8 {-1.09/46 3} 73. Rd3 {7.74/9 1} Rd7 { -1.09/47 1} 74. Re3 {7.39/9 3} Kf7 {-1.09/48 1} 75. a5 {6.67/9 2} Re7 {-0.99/ 33 1} 76. Rd3 {7.45/8 2} Rd7 {-0.99/39 1} 77. Bd6 {6.32/9 2} Rb7 {-0.99/36 0} 78. Kg5 {5.88/9 2} Bd7 {-0.99/35 1} 79. Be5 {6.03/10 1} Ke7 {-0.99/38 0} 80. Bg7 {6.29/9 1} Kf7 {-0.99/38 1} 81. Rd6 {6.06/10 3} Ke7 {-0.99/36 2} 82. Rd4 { 5.78/10 2} Kf7 {-0.99/40 1} 83. Rd3 {5.40/10 2} Ke7 {-0.99/39 1} 84. Rd1 { 5.31/10 1} Kf7 {-0.99/39 1} 85. Rd6 {5.19/9 1} Ke7 {-0.99/40 4} 86. Rd2 { 4.86/9 1} Kf7 {-0.99/38 0} 87. Rd1 {4.56/9 1} Ke7 {-0.99/41 1} 88. Rd6 { 4.59/9 0} Kf7 {-0.99/38 0} 89. Bf6 {4.42/8 1} Ra7 {-0.99/40 1} 90. Be5 { 4.80/8 0} Ke7 {-0.99/41 2} 91. Bf6+ {4.45/8 0} Kf7 {-0.99/42 1} 92. Rd3 { 4.20/8 1} Rb7 {-0.99/43 0} 93. Rd2 {4.23/8 0} Ke8 {-0.99/42 0} 94. Bg7 { 3.89/8 1} Kf7 {-0.99/40 1} 95. Rd4 {3.72/8 1} Ke7 {-0.99/42 0} 96. Rd6 { 3.63/8 0} Rb4 {-0.99/40 1} 97. Bf6+ {3.71/9 0} Ke8 {-0.99/41 1} 98. Be5 { 3.61/10 1} Ke7 {-0.99/40 0} 99. Kh4 {3.18/9 0} Rc4 {-0.99/36 0} 100. Rd2 { 3.62/8 1} Rb4 {-0.99/39 1} 101. Bd6+ {3.55/8 0} Ke8 {-0.99/43 1} 102. Kg5 { 3.77/9 0} Kf7 {-0.99/39 0} 103. Be5 {3.86/9 0} Rb7 {-0.99/41 0} 104. Rd6 { 4.46/11 0} Ra7 {-1.33/41 6} 105. Kh4 {4.06/9 1} Ke7 {-0.99/33 0} 106. g5 { 5.60/9 1} Kf7 {-0.74/25 0} 107. Kg3 {9.57/8 1} Rb7 {-1.82/29 3} 108. Kf2 { 9.49/8 1} Ra7 {-2.35/30 2} 109. Ke3 {8.07/8 1} Rb7 {-2.37/31 1} 110. Ke2 { 8.51/8 0} Kg8 {-2.32/28 0} 111. Kd2 {7.54/7 1} Kf7 {-2.54/29 1} 112. Ke2 { 7.00/8 1} Ra7 {-2.44/29 0} 113. Kd3 {6.29/7 1} Rb7 {-2.55/27 1} 114. Kc3 { 6.13/8 1} Kg8 {-2.75/27 1} 115. Bf6 {5.76/8 0} Kf8 {-2.57/24 0} 116. Rd1 { 5.93/8 0} Kf7 {-3.40/25 1} 117. Kd4 {5.66/8 0} Rb5 {-2.70/21 0} 118. Ke4 { 5.99/9 0} Ke8 {-2.90/25 0} 119. Rc1 {5.85/9 0} Rxa5 {-3.07/25 1} 120. Ke5 { 8.34/9 0} Rb5 {-3.25/27 0} 121. Kd6 {12.51/9 0} Rb7 {-3.56/26 0} 122. f5 { 14.96/10 0} Kf7 {-2.86/19 0} 123. fxe6+ {16.36/9 0} Bxe6 {-3.34/22 1} 124. Kxc6 {17.13/8 0} Rb3 {-3.70/22 1} 125. Ra1 {19.06/7 2} Bf5 {-3.90/25 0} 126. Re1 { 19.51/7 1} Be6 {-4.33/23 1} 127. Kc7 {17.20/7 1} Rb4 {-4.75/25 0} 128. c6 { 19.71/7 1} Rb5 {-4.71/29 0} 129. Rd1 {18.67/7 0} Rd5 {-4.90/29 1} 130. Ra1 { 18.18/7 0} Rc5 {-4.71/24 0} 131. Kb6 {15.88/8 0} Rb5+ {-5.35/25 1} 132. Kxa6 { 15.80/8 0} Bc4 {-4.71/29 0} 133. Rc1 {17.79/8 0} Be2 {-5.46/22 1} 134. Ka7 { 23.37/7 1} Ra5+ {-5.82/27 0} 135. Kb6 {24.53/7 1} Rb5+ {-5.87/28 0} 136. Kc7 { 25.01/7 0} Rb3 {-5.87/28 0} 137. Ra1 {31.58/6 1} Ke6 {-5.92/26 0} 138. Kd8 { 32.28/6 1} Rb8+ {-5.92/24 1} 139. Kc7 {31.14/7 0} Rb3 {-5.92/28 0} 140. Ra8 { 23.14/7 1} Kd5 {-6.11/30 1} 141. Rd8+ {23.56/7 1} Kc5 {-6.64/25 1} 142. Be7+ { 22.48/7 1} Kc4 {-5.48/19 0} 143. Rh8 {24.82/6 1} Kd5 {-6.85/23 1} 144. Rxh7 { 25.85/7 0} Rc3 {-7.13/25 1} 145. Bf6 {34.36/6 0} Rxc6+ {-7.37/22 0} 146. Kd8 { 28.95/7 0} Ra6 {-7.67/24 1} 147. Rb7 {27.12/7 1} Ra3 {-6.96/20 0} 148. Ke7 { 44.11/6 1} Rh3 {-7.13/19 1} 149. Kf7 {63.23/6 1} Kc6 {-7.76/21 0} 150. Rb2 { 56.93/6 1} Bd3 {-7.86/19 0} 151. Kg7 {71.82/6 0} Bf5 {-11.54/22 1} 152. h7 { 55.34/6 1} Kc7 {-14.00/21 1} 153. h8=R {71.56/5 1} Ra3 {-7.77/18 0} 154. Rd2 { 66.70/5 1} Kc6 {-9.12/19 1} 155. Rd4 {49.56/5 1} Ra7+ {-9.21/16 0} 156. Kh6 { 57.61/6 0} Ra5 {adjudication} 1-0 [/pgn]
Repeating the game at 15 + 1, we see that the positional style of Lc0 does not always work even with exchange sacrifice 27. Rxd7+ {+4.92/19 9} Kxd7 {-1.46/38 25}. In the disparity of evaluations this time Sf10 was right.
[pgn][Event "Lc0_32374SF10x6Balsa2_15p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "1"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1/2-1/2"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "339"] [EventDate "2019.??.??"] [TimeControl "900+1"] [SetUp "1"] [FEN "4r3/p1kn1p1p/bp2p1pP/2p1P1K1/2P4B/2P2P2/P3B1P1/3R4 w - - 2 1"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "human"] [BlackType "human"] * [/pgn]
[pgn][Event "Lc0_32374SF10x6Balsa2_15p1"] [Site "J-PC"] [Date "2019.01.01"] [Round "1"] [White "Lc020rc2_32374"] [Black "Stockfish_10_x64_bmi2"] [Result "1/2-1/2"] [ECO "B44"] [WhiteElo "2200"] [BlackElo "2200"] [PlyCount "339"] [EventDate "2019.??.??"] [TimeControl "900+1"] 1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. e4 {0.31/14 15} Bb4 { 0.21/30 22} 7. Nxc6 {0.28/15 8} dxc6 {0.28/28 6} 8. Qxd8+ {0.80/16 14} Kxd8 { 0.28/1} 9. e5 {0.79/16 8} Nd7 {0.19/26 9} 10. Bf4 {0.78/15 11} Bxc3+ {0.36/28 9 } 11. bxc3 {0.75/14 10} b6 {0.37/29 15} 12. h4 {0.76/14 10} Kc7 {0.00/28 15} 13. h5 {0.90/14 25} Bb7 {0.00/32 32} 14. h6 {1.22/12 24} g6 {0.00/33 18} 15. f3 {1.23/13 13} Rad8 {0.00/32 22} 16. Kf2 {1.29/12 28} Rhf8 {0.00/32 7} 17. Rd1 { 1.28/14 43} Nc5 {0.00/33 41} 18. Be2 {1.31/19 20} Rxd1 {0.00/38 6} 19. Rxd1 { 1.28/17 0} Na4 {0.00/41 23} 20. Rc1 {1.61/13 21} Ba6 {0.00/38 36} 21. Bg5 { 1.77/14 20} Re8 {0.00/36 6} 22. Kg3 {1.78/13 18} Nc5 {-0.41/38 65} 23. Kf4 { 1.70/11 26} Nd7 {-0.50/36 16} 24. Bh4 {1.59/10 37} Kb7 {-0.49/38 20} 25. Kg5 { 1.92/10 20} c5 {-0.51/39 14} 26. Rd1 {4.10/18 10} Kc7 {-0.51/38 9} 27. Rxd7+ { 4.92/19 9} Kxd7 {-1.46/38 25} 28. Kf6 {4.57/23 9} Re7 {-1.43/37 8} 29. Kg7 { 4.37/24 7} g5 {-1.53/39 11} 30. Bxg5 {4.17/25 3} f6+ {-1.73/41 37} 31. Kxf6 { 4.15/21 0} Ke8 {-1.62/45 13} 32. f4 {4.16/24 0} Kf8 {-1.73/44 16} 33. a3 { 4.18/20 0} Bc8 {-0.54/33 16} 34. Bh5 {4.13/17 25} Ba6 {-0.36/38 4} 35. Bh4 { 4.12/17 27} Bxc4 {-0.31/35 6} 36. g4 {4.12/15 6} Be2 {-0.46/40 12} 37. Bg3 { 4.05/14 59} Bf3 {-0.39/42 12} 38. f5 {4.42/12 24} Be2 {-0.64/43 29} 39. fxe6 { 7.34/16 13} Bd1 {-0.62/40 8} 40. Bf4 {6.74/13 15} Be2 {-0.50/48 35} 41. Bh2 { 6.68/14 21} a6 {-0.52/43 15} 42. Bg1 {7.29/14 12} Bd1 {-0.39/44 4} 43. Be3 { 7.22/14 11} Bf3 {-0.24/42 9} 44. Bf2 {7.30/14 13} Bd1 {-0.24/45 4} 45. Bg1 { 7.08/12 12} Bf3 {-0.24/46 8} 46. Be3 {7.11/14 8} Be2 {-0.24/46 6} 47. Bf2 { 6.83/13 16} Bd1 {-0.25/47 6} 48. Be3 {6.70/12 14} Be2 {-0.25/49 10} 49. Bc1 { 6.73/13 10} Bf3 {-0.25/45 11} 50. Bf4 {5.97/14 10} Be2 {-0.25/47 5} 51. Be3 { 6.59/11 8} Bd1 {-0.34/48 37} 52. Bf2 {6.69/11 8} Bf3 {-0.25/43 2} 53. Bg1 { 6.27/12 8} Bd1 {-0.25/47 5} 54. Bf2 {6.35/12 7} Bf3 {-0.37/45 10} 55. Bg3 { 5.83/14 12} Bd1 {-0.24/50 11} 56. Bf4 {5.98/12 10} Bf3 {-0.24/50 5} 57. Bc1 { 6.31/11 7} Be2 {-0.24/48 14} 58. Be3 {6.14/11 7} Bf3 {-0.24/50 5} 59. Bd2 { 6.01/12 8} Be2 {-0.14/38 8} 60. Bc1 {5.98/11 6} Bf3 {-0.24/44 4} 61. Bd2 { 5.99/12 4} Be2 {-0.14/41 2} 62. Be1 {5.90/13 5} Bd1 {-0.26/43 10} 63. Bg3 { 5.81/13 8} Bf3 {-0.24/41 3} 64. Be1 {5.92/12 6} Bd1 {-0.13/38 2} 65. Bh4 { 5.14/14 8} Be2 {-0.24/39 5} 66. Kf5 {3.87/18 6} Bd3+ {-0.24/41 5} 67. Kf6 { 3.75/18 0} Be2 {-0.24/44 3} 68. Bg3 {3.47/18 2} Bd1 {-0.14/36 2} 69. Bh2 { 3.50/15 10} Bf3 {-0.11/37 3} 70. Bf4 {3.90/14 4} Be2 {-0.10/38 2} 71. Bd2 { 3.51/15 6} Bf3 {-0.24/45 7} 72. Bc1 {2.78/17 5} Be2 {-0.09/39 3} 73. Bf4 { 2.99/15 8} Bf3 {-0.24/51 7} 74. a4 {2.57/16 5} a5 {-0.09/41 2} 75. c4 {2.19/16 6} Bd1 {-0.09/44 3} 76. Bd2 {1.99/16 5} Be2 {-0.09/42 2} 77. Bf4 {1.69/17 4} Bd1 {-0.09/46 4} 78. Bd2 {1.83/15 4} Be2 {-0.09/47 3} 79. Be3 {1.51/18 3} Bd1 { 0.00/44 2} 80. Bf4 {2.33/14 2} Be2 {0.00/47 4} 81. Bh2 {1.91/17 4} Bd1 { 0.00/49 3} 82. Bf4 {2.01/16 3} Be2 {-0.09/46 3} 83. Bg3 {1.92/16 2} Bf3 { -0.09/46 5} 84. Kf5 {2.09/14 5} Bd1 {-0.09/44 1} 85. Kf6 {1.61/17 3} Be2 { -0.09/46 2} 86. Bh2 {1.67/17 2} Bd1 {-0.09/39 2} 87. Bg3 {1.39/16 2} Bf3 { -0.09/48 2} 88. Be1 {1.76/15 5} Be2 {-0.09/48 4} 89. Bc3 {1.56/17 3} Bf3 { -0.09/42 2} 90. Bb2 {1.75/14 4} Bd1 {0.00/37 4} 91. Bc1 {1.82/14 1} Be2 { 0.00/46 2} 92. Be3 {1.48/18 4} Bd1 {-0.09/49 5} 93. Bc1 {1.68/15 2} Be2 { 0.00/49 1} 94. Bd2 {1.56/17 1} Bd1 {-0.09/50 2} 95. Be3 {1.72/15 4} Be2 { -0.09/49 2} 96. Bd2 {1.57/18 1} Bd1 {-0.09/51 2} 97. Be1 {1.59/15 3} Be2 { -0.09/49 3} 98. Bc3 {1.40/15 3} Bd1 {0.00/48 2} 99. Bb2 {1.24/17 2} Be2 { 0.00/50 4} 100. Ba1 {1.64/14 2} Bd1 {0.00/48 1} 101. Bb2 {1.41/15 1} Be2 { 0.00/52 3} 102. Bc1 {1.54/15 1} Bd1 {0.00/49 1} 103. Be3 {1.37/17 1} Be2 { 0.00/46 1} 104. Bg1 {1.07/18 4} Bd1 {0.00/50 1} 105. Bf2 {1.59/14 1} Be2 { 0.00/47 1} 106. Bh4 {1.47/15 2} Bd1 {-0.09/47 1} 107. Bf2 {1.41/18 2} Be2 { 0.00/47 4} 108. Be1 {1.43/17 0} Bf3 {-0.09/48 2} 109. Bg3 {1.43/14 1} Be2 { 0.00/45 0} 110. Bf2 {1.17/16 1} Bf3 {-0.09/50 3} 111. Kf5 {0.61/13 1} Bd1 { -0.09/47 1} 112. Bh4 {0.58/14 0} Bc2+ {-0.09/46 1} 113. Kf6 {0.47/14 0} Bd1 { -0.09/49 1} 114. Bg5 {0.41/13 0} Bxa4 {0.50/34 1} 115. Bc1 {0.32/14 1} Bd1 { 0.09/33 3} 116. Ba3 {-0.39/14 2} Be2 {0.00/34 2} 117. Bc1 {-0.45/15 0} a4 { 0.00/37 1} 118. Ba3 {-0.44/14 0} Bxc4 {0.00/37 0} 119. Bf7 {-0.44/14 0} Bb5 { 0.00/36 1} 120. g5 {0.33/12 1} Bd3 {0.00/39 0} 121. Bb2 {0.22/12 2} Be4 { 0.00/39 1} 122. Ba3 {0.17/12 0} Bb1 {0.00/38 1} 123. Bc1 {0.19/10 0} Ra7 { 0.00/38 0} 124. Ba3 {0.21/10 1} Bc2 {0.00/39 1} 125. Bc1 {0.21/10 1} Bd3 { 0.00/37 2} 126. Ba3 {0.21/10 0} Bc2 {0.00/42 0} 127. Bb2 {0.19/9 1} Bd3 { 0.00/40 0} 128. Bc1 {0.17/8 0} Re7 {0.00/40 1} 129. Ba3 {0.15/10 0} Bb1 { 0.00/43 1} 130. Bb2 {0.10/9 0} Be4 {0.00/41 1} 131. Bc1 {0.05/8 1} Ra7 { 0.00/41 0} 132. Ba3 {0.07/6 0} Rc7 {0.00/41 0} 133. Bc1 {0.13/8 1} Rb7 { 0.00/44 1} 134. Ba3 {0.18/9 0} Bd3 {0.00/44 1} 135. Bc1 {0.10/9 1} Re7 { 0.00/44 0} 136. Ba3 {0.04/6 0} Rc7 {0.00/42 0} 137. Bb2 {0.11/7 0} Be4 { 0.00/40 0} 138. Ba3 {0.13/9 0} Bb1 {0.00/44 0} 139. Bb2 {0.11/9 1} Re7 { 0.00/44 1} 140. Ba3 {0.06/7 0} Ra7 {0.00/44 0} 141. Bh5 {0.07/9 1} Bd3 { 0.00/45 1} 142. Bc1 {0.13/8 1} Rc7 {0.00/40 2} 143. Bf7 {0.09/6 0} Rb7 { 0.00/45 1} 144. Ba3 {0.13/9 0} Re7 {0.00/48 2} 145. Bc1 {0.08/6 0} Rc7 { 0.00/42 0} 146. Bb2 {0.13/7 1} Ra7 {0.00/48 4} 147. Ba3 {0.06/5 1} Be4 { 0.00/49 2} 148. Bh5 {0.10/7 0} Re7 {0.00/40 0} 149. Bf7 {0.06/6 0} Rb7 { 0.00/47 1} 150. Bb2 {0.06/6 1} Bb1 {0.00/44 1} 151. Ba3 {0.06/8 1} Bc2 { 0.00/45 0} 152. Bc1 {0.06/8 1} Re7 {0.00/51 2} 153. Ba3 {0.02/5 0} Rc7 { 0.00/48 1} 154. Bb2 {0.10/8 1} Bd3 {0.00/42 0} 155. Ba3 {0.06/6 1} Bb1 { 0.00/48 0} 156. Bb2 {0.07/8 0} Bd3 {0.00/49 1} 157. Bc1 {0.06/5 1} Rb7 { 0.00/42 0} 158. Ba3 {0.04/7 0} Bb1 {0.00/47 1} 159. Bc1 {0.04/6 0} Bc2 { 0.00/43 0} 160. Bh5 {0.00/8 1} Ra7 {0.00/44 1} 161. Bf7 {0.04/8 0} Rb7 { 0.00/41 1} 162. Bh5 {0.20/10 0} Be4 {0.00/41 0} 163. Be2 {0.40/10 1} Bg6 { 0.00/32 0} 164. Bb5 {0.48/10 0} Ra7 {0.00/34 0} 165. Bd7 {0.32/11 1} Kg8 { 0.00/29 0} 166. Ba3 {0.17/10 0} Rb7 {0.00/34 1} 167. Bc6 {0.08/8 1} Rc7 { 0.00/38 0} 168. Bb5 {0.07/6 0} Kf8 {0.00/39 0} 169. Bd7 {0.04/4 1} Kg8 { 0.00/41 0} 170. Ke7 {normal} 1/2-1/2 [/pgn]