Opening novelty, positional exchange sacrifice by lc0 and incredible position
Posted: Sun Oct 28, 2018 1:59 pm
From one of my tests, lc0 played the opening novelty 10..h5 putting the rook in play in an original way and sacrificing it later for a bishop.
19. Bg5 {lc0 0.00/27 16} Rxg5 {Sf9 1.31/14 7.7s}
After 74..Rxg6 the next incredible position was reached, where Sf9 is cornered and lost.
[pgn][Event "Silver16sec"] [Site "Ros"] [Date "2018.10.12"] [Round "42"] [White "Stockfish9"] [Black "Lc011261"] [Result "0-1"] [ECO "B66"] [Annotator "R,J"] [PlyCount "153"] [EventDate "2018.??.??"] [SetUp "1"] [FEN "8/8/6r1/p7/P2p1p1p/KPb1pPkP/4R1P1/1R6 w - - 0 75"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "human"] [BlackType "human"] * [/pgn]
Stockfish 9 with two logical cores of the i7 980x, which allows calculating about 2.9 million nodes per second against 3300 of lc0 11261(GTX 1060 3Gb), with a ratio of:
LeR = 3300 * 875/2900000 = 0.996
Both played from Silver Test Suite without tablebases at 16 seconds per move.
[pgn][Event "Silver16sec"] [Site "Ros"] [Date "2018.10.12"] [Round "42"] [White "Stockfish9"] [Black "Lc011261"] [Result "0-1"] [ECO "B66"] [Annotator "R,J"] [PlyCount "153"] [EventDate "2018.??.??"] 1. e4 {book} c5 {book} 2. Nf3 {book} d6 {book} 3. d4 {book} cxd4 {book} 4. Nxd4 {book} Nf6 {book} 5. Nc3 {book} Nc6 {book} 6. Bg5 {book} e6 {book} 7. Qd2 {book } a6 {book} 8. O-O-O {book} h6 {book} 9. Be3 {0.42/24 16} Be7 {-0.37/8 16} 10. f3 {0.54/24 16} h5 {-0.39/9 14} 11. h3 {0.62/24 16} h4 {-0.32/8 9.9s} 12. Kb1 { 0.65/26 16} Bd7 {-0.31/8 10} 13. a3 {0.58/24 16} Rb8 {-0.10/8 13} 14. Be2 {0. 70/25 16} Qc7 {-0.01/9 9.8s} 15. Nxc6 {0.50/24 16} bxc6 {0.32/8 7.7s} 16. Bc4 { 0.32/24 16} Qb7 {0.42/9 7.3s} 17. Qc1 {0.00/28 16} d5 {0.39/11 6.3s} 18. Bb3 { 0.45/26 16} Rh5 {0.36/10 3.5s} 19. Bg5 {0.00/27 16} Rxg5 {1.31/14 7.7s} 20. Qxg5 {0.47/30 16} Nxe4 {1.19/16 4.4s} 21. Qxg7 {0.43/32 16} Bf6 {1.12/15 2.7s} 22. Nxe4 {0.37/34 16} Bxg7 {1.07/15 1.6s} 23. Nd6+ {0.47/32 16} Ke7 {1.06/14 5. 2s} 24. Nxb7 {0.30/34 16} Rxb7 {1.08/13 1.6s} 25. Rhe1 {0.21/32 16} a5 {1.19/9 7.4s} 26. a4 {0.40/32 16} f5 {1.09/9 16} 27. Ka2 {0.25/31 16} Kd6 {1.06/8 8.5s} 28. c3 {0.25/36 16} Rb8 {0.97/8 8.5s} 29. Ka3 {0.30/35 16} Bf8 {1.00/7 14} 30. Bc2 {0.31/32 16} e5 {1.22/8 8.3s} 31. Ka2 {0.35/32 16} Be7 {1.34/8 7.6s} 32. Re2 {0.16/28 16} Be6 {1.36/8 7.5s} 33. Bb1 {0.00/33 16} Bf6 {1.52/7 8.1s} 34. Bd3 {0.00/35 16} Ke7 {1.38/7 11} 35. Rde1 {0.00/36 16} Kd6 {1.31/9 12} 36. Rd1 {-0.07/34 16} Ke7 {1.30/8 11} 37. Ka1 {0.00/39 16} Rg8 {1.30/7 7.6s} 38. Rde1 { 0.00/36 16} Kd6 {1.30/8 6.9s} 39. Rd1 {0.00/40 16} Bh8 {1.25/7 14} 40. Kb1 {0. 00/36 16} Kc7 {1.22/8 9.9s} 41. Rf1 {0.00/36 16} Rb8 {1.25/7 11} 42. Kc1 {0.00/ 37 16} Bg7 {1.30/8 12} 43. Bc2 {0.00/35 16} c5 {1.56/8 12} 44. Rg1 {-0.07/35 16 } Bh6+ {2.11/11 6.9s} 45. Kb1 {-0.34/30 16} Bf4 {2.24/11 3.9s} 46. Bd3 {-0.50/ 32 16} d4 {2.26/11 7.7s} 47. cxd4 {-0.08/32 16} cxd4 {2.18/12 2.4s} 48. Rc2+ { -0.15/35 16} Kd6 {2.13/10 6.1s} 49. Re1 {-0.34/34 16} Rg8 {2.13/10 12} 50. b3 { -0.12/30 16} Rb8 {2.09/9 5.9s} 51. Rb2 {-0.45/30 16} Be3 {2.12/9 6.9s} 52. Ka2 {0.00/38 16} Rc8 {2.07/8 11} 53. Rc2 {0.00/33 16} Rf8 {1.95/11 11} 54. Rf1 {-0. 15/30 16} Bd5 {2.53/9 7.6s} 55. Rb2 {-0.08/30 16} Ke6 {2.49/10 5.1s} 56. Bc4 { -0.50/30 16} Rb8 {2.33/11 7.0s} 57. Rbb1 {-0.77/28 16} Bd2 {4.61/8 7.9s} 58. Bb5 {-1.55/30 16} Bc3 {4.94/8 8.7s} 59. Rbc1 {-1.82/32 16} e4 {4.70/10 8.0s} 60. Rf2 {-1.97/30 16} e3 {6.22/8 8.1s} 61. Rfc2 {-2.05/37 16} Rc8 {6.64/8 9.0s} 62. Re2 {-2.05/41 16} Ke5 {7.61/7 8.5s} 63. Ba6 {-2.05/42 16} Rc5 {7.78/8 8.3s} 64. Rec2 {-2.52/34 16} Kf4 {8.02/7 8.3s} 65. Rd1 {-3.16/32 16} Kg3 {8.71/7 7.0s } 66. Bd3 {-3.87/32 16} Be6 {9.30/7 8.4s} 67. Re2 {-4.32/33 16} Rc8 {10.30/7 13 } 68. Rc2 {-4.74/30 16} f4 {11.44/7 14} 69. Rdc1 {-5.32/30 16} Rb8 {13.12/7 8. 6s} 70. Rb1 {-6.05/32 16} Rb4 {12.36/7 13} 71. Ka3 {-6.50/34 16} Bf7 {12.57/8 15} 72. Re2 {-6.72/34 16} Rb6 {12.61/8 7.3s} 73. Be4 {-6.93/34 16} Bg6 {16.57/ 7 8.9s} 74. Bxg6 {-9.02/31 16} Rxg6 {15.42/8 6.4s} 75. Rd1 {-10.05/26 16} Kh2 { 15.56/8 8.7s} 76. g4+ {-10.61/26 16} Kg3 {19.45/7 9.6s} 77. Rc2 {-12.25/26 16s, Black wins by adjudication} 0-1 [/pgn]
19. Bg5 {lc0 0.00/27 16} Rxg5 {Sf9 1.31/14 7.7s}
After 74..Rxg6 the next incredible position was reached, where Sf9 is cornered and lost.
[pgn][Event "Silver16sec"] [Site "Ros"] [Date "2018.10.12"] [Round "42"] [White "Stockfish9"] [Black "Lc011261"] [Result "0-1"] [ECO "B66"] [Annotator "R,J"] [PlyCount "153"] [EventDate "2018.??.??"] [SetUp "1"] [FEN "8/8/6r1/p7/P2p1p1p/KPb1pPkP/4R1P1/1R6 w - - 0 75"] [Termination "unterminated"] [PlyCount "0"] [WhiteType "human"] [BlackType "human"] * [/pgn]
Stockfish 9 with two logical cores of the i7 980x, which allows calculating about 2.9 million nodes per second against 3300 of lc0 11261(GTX 1060 3Gb), with a ratio of:
LeR = 3300 * 875/2900000 = 0.996
Both played from Silver Test Suite without tablebases at 16 seconds per move.
[pgn][Event "Silver16sec"] [Site "Ros"] [Date "2018.10.12"] [Round "42"] [White "Stockfish9"] [Black "Lc011261"] [Result "0-1"] [ECO "B66"] [Annotator "R,J"] [PlyCount "153"] [EventDate "2018.??.??"] 1. e4 {book} c5 {book} 2. Nf3 {book} d6 {book} 3. d4 {book} cxd4 {book} 4. Nxd4 {book} Nf6 {book} 5. Nc3 {book} Nc6 {book} 6. Bg5 {book} e6 {book} 7. Qd2 {book } a6 {book} 8. O-O-O {book} h6 {book} 9. Be3 {0.42/24 16} Be7 {-0.37/8 16} 10. f3 {0.54/24 16} h5 {-0.39/9 14} 11. h3 {0.62/24 16} h4 {-0.32/8 9.9s} 12. Kb1 { 0.65/26 16} Bd7 {-0.31/8 10} 13. a3 {0.58/24 16} Rb8 {-0.10/8 13} 14. Be2 {0. 70/25 16} Qc7 {-0.01/9 9.8s} 15. Nxc6 {0.50/24 16} bxc6 {0.32/8 7.7s} 16. Bc4 { 0.32/24 16} Qb7 {0.42/9 7.3s} 17. Qc1 {0.00/28 16} d5 {0.39/11 6.3s} 18. Bb3 { 0.45/26 16} Rh5 {0.36/10 3.5s} 19. Bg5 {0.00/27 16} Rxg5 {1.31/14 7.7s} 20. Qxg5 {0.47/30 16} Nxe4 {1.19/16 4.4s} 21. Qxg7 {0.43/32 16} Bf6 {1.12/15 2.7s} 22. Nxe4 {0.37/34 16} Bxg7 {1.07/15 1.6s} 23. Nd6+ {0.47/32 16} Ke7 {1.06/14 5. 2s} 24. Nxb7 {0.30/34 16} Rxb7 {1.08/13 1.6s} 25. Rhe1 {0.21/32 16} a5 {1.19/9 7.4s} 26. a4 {0.40/32 16} f5 {1.09/9 16} 27. Ka2 {0.25/31 16} Kd6 {1.06/8 8.5s} 28. c3 {0.25/36 16} Rb8 {0.97/8 8.5s} 29. Ka3 {0.30/35 16} Bf8 {1.00/7 14} 30. Bc2 {0.31/32 16} e5 {1.22/8 8.3s} 31. Ka2 {0.35/32 16} Be7 {1.34/8 7.6s} 32. Re2 {0.16/28 16} Be6 {1.36/8 7.5s} 33. Bb1 {0.00/33 16} Bf6 {1.52/7 8.1s} 34. Bd3 {0.00/35 16} Ke7 {1.38/7 11} 35. Rde1 {0.00/36 16} Kd6 {1.31/9 12} 36. Rd1 {-0.07/34 16} Ke7 {1.30/8 11} 37. Ka1 {0.00/39 16} Rg8 {1.30/7 7.6s} 38. Rde1 { 0.00/36 16} Kd6 {1.30/8 6.9s} 39. Rd1 {0.00/40 16} Bh8 {1.25/7 14} 40. Kb1 {0. 00/36 16} Kc7 {1.22/8 9.9s} 41. Rf1 {0.00/36 16} Rb8 {1.25/7 11} 42. Kc1 {0.00/ 37 16} Bg7 {1.30/8 12} 43. Bc2 {0.00/35 16} c5 {1.56/8 12} 44. Rg1 {-0.07/35 16 } Bh6+ {2.11/11 6.9s} 45. Kb1 {-0.34/30 16} Bf4 {2.24/11 3.9s} 46. Bd3 {-0.50/ 32 16} d4 {2.26/11 7.7s} 47. cxd4 {-0.08/32 16} cxd4 {2.18/12 2.4s} 48. Rc2+ { -0.15/35 16} Kd6 {2.13/10 6.1s} 49. Re1 {-0.34/34 16} Rg8 {2.13/10 12} 50. b3 { -0.12/30 16} Rb8 {2.09/9 5.9s} 51. Rb2 {-0.45/30 16} Be3 {2.12/9 6.9s} 52. Ka2 {0.00/38 16} Rc8 {2.07/8 11} 53. Rc2 {0.00/33 16} Rf8 {1.95/11 11} 54. Rf1 {-0. 15/30 16} Bd5 {2.53/9 7.6s} 55. Rb2 {-0.08/30 16} Ke6 {2.49/10 5.1s} 56. Bc4 { -0.50/30 16} Rb8 {2.33/11 7.0s} 57. Rbb1 {-0.77/28 16} Bd2 {4.61/8 7.9s} 58. Bb5 {-1.55/30 16} Bc3 {4.94/8 8.7s} 59. Rbc1 {-1.82/32 16} e4 {4.70/10 8.0s} 60. Rf2 {-1.97/30 16} e3 {6.22/8 8.1s} 61. Rfc2 {-2.05/37 16} Rc8 {6.64/8 9.0s} 62. Re2 {-2.05/41 16} Ke5 {7.61/7 8.5s} 63. Ba6 {-2.05/42 16} Rc5 {7.78/8 8.3s} 64. Rec2 {-2.52/34 16} Kf4 {8.02/7 8.3s} 65. Rd1 {-3.16/32 16} Kg3 {8.71/7 7.0s } 66. Bd3 {-3.87/32 16} Be6 {9.30/7 8.4s} 67. Re2 {-4.32/33 16} Rc8 {10.30/7 13 } 68. Rc2 {-4.74/30 16} f4 {11.44/7 14} 69. Rdc1 {-5.32/30 16} Rb8 {13.12/7 8. 6s} 70. Rb1 {-6.05/32 16} Rb4 {12.36/7 13} 71. Ka3 {-6.50/34 16} Bf7 {12.57/8 15} 72. Re2 {-6.72/34 16} Rb6 {12.61/8 7.3s} 73. Be4 {-6.93/34 16} Bg6 {16.57/ 7 8.9s} 74. Bxg6 {-9.02/31 16} Rxg6 {15.42/8 6.4s} 75. Rd1 {-10.05/26 16} Kh2 { 15.56/8 8.7s} 76. g4+ {-10.61/26 16} Kg3 {19.45/7 9.6s} 77. Rc2 {-12.25/26 16s, Black wins by adjudication} 0-1 [/pgn]