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descriptionComputer Chess Championship with LeelaChessZero EmptyComputer Chess Championship with LeelaChessZero

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Computer Chess Championship

https://www.chess.com/computer-chess-championship

with a new revolutionary chess engine LeelaChessZero (lc0). Available for free:

https://github.com/LeelaChessZero/lc0/wiki/Getting-Started
http://162.217.248.187/networks

but a strong graphics card is required or preferably a GPU processor

descriptionComputer Chess Championship with LeelaChessZero EmptyRe: Computer Chess Championship with LeelaChessZero

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And here the Champion

https://stockfishchess.org

descriptionComputer Chess Championship with LeelaChessZero EmptyRe: Computer Chess Championship with LeelaChessZero

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[pgn]
[Event "CCCC 1: Rapid Rumble (15|5) Bonus Games"]
[White "Lc0 17.11089"]
[Black "Stockfish 220818"]
[Site "Chess.com"]
[Round ""]
[Annotator "Ts,George"]
[Result "1-0"]
[Date "2018.10.03"]
[WhiteElo "3300"]
[BlackElo "3400"]
[PlyCount "235"]

1. f4 Nh6 2. f5 Nxf5 3. Nf3 Nh6 4. Ng1 Ng8 {This maneuver was made since this
is a f-Pawn handicap game. Leela has a Pawn less and even more it is the
critical f-Pawn for King safety. Yet somehow she managed to make Stockfish to
lose..... Till that game 9 games had been played with this variant(f-Pawn
missing for white) and we had 6 black wins and 3 draws. So Leela is the first
engine that won with white pieces. And against which opponent? Stockfish!} 5. e4 e6 6. Nc3 d5 7. d4 Bb4 8. e5 Qh4+ $6 {Stockfish missed that Qe4+ is not
working.} 9. g3 $1 {Stockfish expected Ke2 here. Leela knew better.} Qd8 (9... Qe4+ $2 10. Kf2 Qxh1 11. h3 $1 Bxc3 12. bxc3 Qe4 13. Nf3 {Queen is trapped.} Nc6 14. Bd3 f5 $16 {} )10. a3 Bf8 11. Be3 Ne7 12. Nf3 Nf5 {Here
Leela thinks this is a mistake. Now she went in a positive evaluaiton for her
position. Stockfish said -0.57 in favor of black.} 13. Bg5 Be7 14. Bxe7 Nxe7 {
Both thought now game is equal.} 15. Bd3 h6 16. b4 b6 17. 0-0 0-0 {Leela after
this move of Stockfish really likes her position.} 18. Ne2 c6 19. a4 c5 20. c3 Nbc6 21. Qd2 Bd7 22. Rae1 Rc8 $6 {It's not that clear where black blundered or
made a mistake and went to lose the game. But Stockfish step by step got into
a losing position and yet it's not clear what he should do differently in
order to hold. Allowing b5 in next move is a bad idea anyway since white locks
any counterplay.} 23. b5 { This reminds the
anticomputer play of the old times. closing the position and gathering your
forces slowly in the side of the computer's King ready to attack. This old
method stopped working completely from about 2010-2011 where engines(software)
and hardware advances, made it impossible to outsmart in this way the engines.} Na5 24. Nf4 cxd4 25. cxd4 Qc7 26. Rc1 Qd8 27. Rxc8 Qxc8 28. Nh5 Nc4 29. Qf4 Ng6 30. Nf6+ $3 Kh8 (30... gxf6 31. Qxh6 Ncxe5 (31... fxe5 32. Ng5 $18 {} )32. dxe5 Qc5+ 33. Kg2 Qe7 34. h4 $18 {} )31. Qc1 Na5 32. Qd2 Nc4 33. Qc1 Na5 34. Bxg6 Qxc1 35. Rxc1 gxf6 36. Bh5 Nc4 37. exf6 Kg8 38. Ne5 Nxe5 39. dxe5 Rc8 40. Rxc8+ Bxc8 {Even though material is
equal and white has no immediate threat, positionally this is winning for
white as Leela has all the play and free movement with her King and black
pieces are locked in cages and h-Pawn of black is dead.} 41. Be2 d4 (41... Bb7 {Trying to keep the d-Pawn is worthless.} 42. Bd3 {} Kh8 43. Kf2 Kg8 44. Ke3 Kh8 45. Kf4 { h-Pawn will fall} )42. Bf3 h5 43. Bxh5 Bb7 44. Kf2 Be4 45. Ke1 d3 46. Kd2 Kf8 47. Ke3 Bh7 48. Bd1 Ke8 49. g4 Kd8 50. Kd2 Ke8 51. Ke3 Kf8 52. Kf3 Ke8 53. Kf2 Kd7 54. Ke3 Kc7 55. h4 Kc8 56. h5 Kd7 57. Kf3 Ke8 58. Kf2 Kf8 59. Ke3 Kg8 60. Kf4 Kh8 61. Kf3 Bg8 62. Ke4 Bh7+ 63. Kf4 Kg8 64. Ke3 Kf8 65. Kf2 Be4 66. Ke3 Bh7 67. Bb3 Kg8 68. Bc4 d2 69. Kxd2 Be4 70. Be2 Bb7 71. g5 Be4 72. Bd1 Kh8 73. Kc3 Kg8 74. Be2 Bf5 75. Kd2 Bb1 76. Bd1 Kf8 77. Kc3 Ke8 78. Kb2 Bh7 79. Kc3 Be4 80. Kd2 Bf5 81. Ke3 Bb1 82. Kf3 Kf8 83. Ke3 Ke8 84. Kd4 Kf8 85. Kc3 Bh7 86. Be2 Kg8 87. Bg4 Be4 88. Bd1 Kh8 89. Kd2 Bh7 90. Bg4 Kg8 91. Bd1 Kf8 92. Bb3 Ke8 93. Bc4 Kd7 94. Be2 Ke8 95. Kc3 Kf8 96. Bd1 Bb1 97. Bg4 Be4 98. Kd2 Kg8 99. g6 fxg6 100. Bxe6+ Kf8 101. h6 g5 102. Ke3 Bg6 103. Bd5 g4 104. Kf4 g3 105. Kxg3 Ke8 106. e6 Kd8 107. Kf4 a6 108. bxa6 Be8 109. a7 Kc7 110. a8=Q Kd6 111. h7 Kc5 112. h8=R Bd7 113. Ke5 Kb4 114. Rh3 Bxa4 115. Kd4 Bd1 116. Bc6 Bb3 117. f7 b5 118. f8=Q# 1-0

[/pgn]

descriptionComputer Chess Championship with LeelaChessZero EmptyRe: Computer Chess Championship with LeelaChessZero

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