M ANSARI wrote: ↑Sat Feb 16, 2019 7:29 am
Very true ... I think that SF even on 1000 cores would still lose to Lc0 some pretty spectacular games. I mean just look at yesterday's loss ... out of the opening and each engine plays a few moves by itself and you have this position
Thanks for the game, it is absolutely amazing!!
I am a follower of chess computers since the 80s and I must say that I never thought we would ever see such a radical revolution.
As another example of this revolution I show a game of one of my tests.
The game was played from the 8th position of Balsa_Top25 Test Suite, Sicilian Najdorf betwwen Stockfish dev 2-3-19 on i7 980X 6 cores and AntiFish1.0 on 2xGTX1060 at 90 minutes plus 30 sec time control.
Stockfish has just eaten a pawn and is evaluated with +1.30/34 26 sec.,
Lc0 payed 41...Rd7 +0.46/16 and Stockfish didn't eat the second pawn at a5 after thinking 391 sec 42.Qe3 +0.16/36.
If 42.Qxa5 Stockfish gives the variant
Analysis by Stockfish 030219 64 BMI2x4:
42...Dh6 43.Dc3 Ad8 44.Cxd6 Cg3+ 45.hxg3 hxg3+ 46.Rg1 Ab6+ 47.Rf1 Dh1+ 48.Re2 Dxg2+ 49.Rd1 Ad4 50.Dd2 Dxf3+ 51.De2 Dxe2+ 52.Rxe2 Txd6 53.Rf3 Rg7 54.Rxg3 Rf6 55.Rf3 Td7 56.Tbd1 Ab2 57.a4 Aa3 58.Th1 Ac5 59.Re2 e4 60.Ta1 Ta7 61.Tad1 Ab4 62.Re3 Te8 63.Th3 Ac5+ 64.Re2 Td7 65.Rf1 Ab4 66.Ta1 Ta7 67.Td1 Ad6 68.Td2 Tg7 69.Td1 Tee7 70.Re2 Th7 71.Tdh1 Txh3 72.Txh3 Ac5 73.Rf1 Re5 74.Th6 Tg7
Las negras están mejor: -/+ (-0.94) Profundidad: 43/85 00:13:17 4052MN
while AF prefers 42...Bg5
{Lc0 v0.20.2AF10:} (42. .. Bg5 43. Qb6 Bf4 44. a4 Qf6
45. a5 Qg5 46. Qf2 Rf8 47. a6 Rh7 48. Nxd6 Bg3 49. Qe3 Bf4 50. Qf2 Ng3+ 51.
Kg1 h3 52. a7 e4 53. fxe4 hxg2 54. Ra1 Qh4 55. Qxg2 Bxd6 56. a8=Q Bc5+ 57.
Re3 Bxe3+ 58. Qf2 Bxf2+ {-1.07/16}))
After that AF delights us with a ride of the knight
and finally won the game
[pgn][Event "My Tournament"]
[Site "?"]
[Date "2019.02.14"]
[Round "1"]
[White "SFDev2-3-19x6"]
[Black "AF10"]
[Result "0-1"]
[ECO "B90"]
[PlyCount "213"]
[EventDate "2019.??.??"]
[TimeControl "5400+30"]
1. e4 {book} c5 {book} 2. Nf3 {book} d6 {book} 3. d4 {book} cxd4 {book} 4. Nxd4
{book} Nf6 {book} 5. Nc3 {book} a6 {book} 6. Be3 {book} e5 {book} 7. Nb3 {book}
Be6 {book} 8. f3 {book} h5 {-0.14/12 105s} 9. Qd2 {0.32/36 590s} Nbd7 {-0.05/
13 75s} 10. Nd5 {0.41/30 39} Bxd5 {-0.18/13 132s} 11. exd5 {0.37/34 72s} g6 {
-0.24/15 249s} 12. Be2 {0.36/30 60s} Bg7 {0.18/14 91s} 13. O-O {0.53/31 65s}
Qc7 {0.20/12 198s} 14. Rac1 {0.73/32 185s} b6 {0.18/14 83s} 15. c4 {0.64/30 72s
} a5 {0.45/11 175s} 16. Na1 {0.92/33 91s} Nc5 {0.73/12 216s} 17. Nc2 {1.17/33
69s} h4 {0.53/14 107s} 18. Na3 {1.18/32 89s} Nh5 {0.34/14 213s} 19. Nb5 {
1.18/34 105s} Qe7 {0.25/16 141s} 20. Rfe1 {1.20/35 264s} O-O {0.61/12 113s} 21.
Bd1 {1.14/30 76s} f5 {0.50/13 98s} 22. Bc2 {1.12/32 88s} Rf7 {0.40/12 225s} 23.
b3 {1.25/32 90s} Rc8 {0.30/14 114s} 24. Bg5 {1.33/33 190s} Bf6 {0.46/12 109s}
25. Be3 {1.45/32 112s} Kh7 {0.31/13 279s} 26. Rb1 {1.28/36 436s} Bg7 {0.27/11
150s} 27. a3 {1.34/35 327s} Nd7 {0.10/13 97s} 28. Na7 {1.33/36 262s} Re8 {
0.13/16 141s} 29. Nb5 {1.36/34 322s} Rc8 {0.06/14 119s} 30. Bd1 {1.19/33 87s}
Kg8 {0.13/13 222s} 31. Na7 {1.16/34 176s} Re8 {0.11/16 137s} 32. Nb5 {1.33/32
152s} Rc8 {0.00/7 89s} 33. Na7 {1.18/36 310s} Re8 {0.00/14 0.28s} 34. Bc2 {
1.31/35 180s} Qf8 {0.06/15 329s} 35. Nb5 {1.44/28 44} Rc8 {0.06/14 1.8s} 36.
Kh1 {1.07/35 708s} Kh8 {0.02/13 279s} 37. Qf2 {1.32/28 67s} Bf6 {0.20/13 106s}
38. Na7 {1.44/33 144s} Ra8 {0.18/13 177s} 39. Nb5 {1.38/30 59} Rc8 {0.18/14 69s
} 40. Bxb6 {1.19/34 77s} Nxb6 {0.43/16 133s} 41. Qxb6 {1.30/34 56} Rd7 {
0.46/16 0.96s} 42. Qe3 {0.16/36 391s} Nf4 {1.14/16 196s} 43. Qf2 {0.00/32 30}
a4 {0.97/22 90s} 44. Red1 {0.00/35 33} axb3 {1.06/22 101s} 45. Bxb3 {0.00/38 32
} Nh5 {1.01/27 79s} 46. Na7 {0.00/34 79s} Ra8 {0.94/26 57} 47. Nb5 {0.00/36 21}
Qh6 {1.09/24 346s} 48. Re1 {0.00/34 105s} Rc8 {1.27/18 3.0s} 49. a4 {-0.49/33
104s} Qf4 {1.54/18 159s} 50. Ba2 {-0.33/31 34} Ra8 {1.55/20 213s} 51. Bb3 {
-0.21/31 17} Rc8 {1.57/22 31} 52. Ba2 {0.00/33 70s} Kh7 {1.35/20 131s} 53. Qe3
{0.00/33 12} Qxe3 {1.34/18 6.3s} 54. Rxe3 {-0.34/36 118s} Bd8 {1.38/20 31} 55.
Nc3 {-0.38/32 54} Kh6 {1.59/14 144s} 56. Rd3 {-0.17/31 47} Nf4 {2.45/15 106s}
57. Rdd1 {-0.80/30 29} Ba5 {3.42/16 76s} 58. Nb5 {-0.90/30 22} h3 {3.57/16 49}
59. g3 {-0.58/27 12} Ng2 {3.86/16 35} 60. Rb2 {-1.14/33 56} Ne1 {4.77/13 84s}
61. f4 {-1.16/32 8.5s} e4 {4.69/15 37} 62. Re2 {-1.31/34 31} Nd3 {4.97/13 102s}
63. Bb3 {-1.57/34 51} Bb6 {5.12/12 35} 64. Rf1 {-1.41/31 7.2s} Kg7 {5.12/11 34}
65. Ra1 {-1.91/32 53} Ra8 {5.43/12 54} 66. Bc2 {-2.01/34 27} Nf2+ {6.06/16 47}
67. Kg1 {-2.02/32 11} Ng4+ {6.14/15 14} 68. Kf1 {-1.88/35 13} Ne3+ {6.34/15 58}
69. Ke1 {-1.79/35 14} Nxc4 {6.43/14 6.7s} 70. Bb3 {-1.83/35 23} Ne3 {6.64/13 34
} 71. Kd2 {-1.81/33 24} Ng4 {6.80/13 39} 72. Kc2 {-2.05/35 39} Kf6 {7.61/12 68s
} 73. Kb2 {-2.25/31 27} g5 {8.07/11 38} 74. fxg5+ {-2.45/33 63s} Kxg5 {7.64/11
25} 75. Bc4 {-2.82/31 45} Rb8 {7.42/11 41} 76. Kb3 {-2.64/32 38} Bd4 {7.38/10
30} 77. Rd1 {-2.75/34 38} Bc5 {7.67/9 44} 78. Rde1 {-2.82/31 25} Ra7 {7.94/9 52
} 79. Ra1 {-2.89/31 26} Kf6 {9.02/9 30} 80. Kc2 {-3.04/34 32} Ra5 {10.44/10 26}
81. Kb3 {-3.13/31 13} Ne3 {10.05/10 26} 82. Rea2 {-3.13/33 55} Ke5 {10.85/10 31
} 83. Rb1 {-3.50/31 30} Nxd5 {10.38/9 54} 84. Bxd5 {-3.42/29 9.3s} Kxd5 {
9.82/11 10} 85. Rd1+ {-3.85/30 51} Ke5 {9.50/10 36} 86. Rad2 {-3.80/32 16} Ra7
{9.72/11 22} 87. Rd5+ {-4.24/30 44} Ke6 {9.77/11 18} 88. R5d2 {-4.32/26 14} Rc7
{9.65/9 70s} 89. Rc2 {-3.95/30 37} Rcc8 {9.46/9 29} 90. Rdc1 {-4.25/29 39} Kf6
{10.47/8 28} 91. Rd1 {-3.96/26 22} Kg5 {10.99/9 23} 92. Re2 {-3.67/27 28} Re8 {
11.57/9 33} 93. Kc4 {-3.84/32 40} Rbc8 {11.67/9 24} 94. Kb3 {-4.84/27 30} Kg4 {
11.98/9 33} 95. Ra2 {-4.85/27 30} Re5 {12.61/9 25} 96. Nxd6 {-5.30/30 30} Bxd6
{22.24/12 24} 97. Rxd6 {-7.72/36 30} e3 {23.48/12 17} 98. Rh6 {-8.49/32 30} e2
{47.13/10 35} 99. Rxe2 {-10.06/32 30} Rxe2 {48.30/10 31} 100. Rh4+ {-12.18/33
30} Kf3 {38.71/10 40} 101. Rxh3 {-7.79/28 10} Ke4 {40.46/9 52} 102. Rh6 {
-8.27/28 50} Rb8+ {40.21/8 31} 103. Kc3 {-8.68/34 30} Reb2 {41.21/8 32} 104.
Rh7 {-9.01/31 30} Kd5 {48.77/8 25} 105. Rd7+ {-9.06/26 9.5s} Ke6 {43.67/9 30}
106. Rh7 {-9.46/34 46} R2b7 {45.65/9 35} 107. Rh5 {adjudication -9.66/36 35s,
Black wins by adjudication} 0-1
[/pgn]