Stockfish shows the best DEFENSE against D4! - Weiss 2.1 vs Stockfish dev16 - TCEC Season 23 Bonus
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HERE IS THE LINK WHERE YOU CAN DOWNLOAD THE NEW STOCKFISH 15:
https://stockfishchess.org
DOWNLOAD SOME COOL STOCKFISH 15 GAMES IN PGN FORMAT HERE:
http://ccrl.chessdom.com/ccrl/4040/games.html#by_engine
A new major release of Stockfish is now available at https://stockfishchess.org
Stockfish 15 continues to push the boundaries of chess, providing unrivalled analysis and playing strength. In our testing, Stockfish 15 is ahead of Stockfish 14 by 36 Elo points and wins nine times more game pairs than it loses.
Improvements to the engine have made it possible for Stockfish to end up victorious in tournaments at all sorts of time controls ranging from bullet to classical and even at Fischer random chess. At CCC, Stockfish won all of the latest tournaments: CCC 16 Bullet, Blitz and Rapid, CCC 960 championship, and the CCC 17 Rapid. At TCEC, Stockfish won the Season 21, Cup 9, FRC 4 and in the current Season 22 superfinal, at the time of writing, has won 16 game pairs and not yet lost a single one.
This progress is the result of a dedicated team of developers that comes up with new ideas and improvements. For Stockfish 15, we tested nearly 13000 different changes and retained the best 200. These include the fourth generation of our NNUE network architecture, as well as various search improvements. To perform these tests, contributors provide CPU time for testing, and in the last year, they have collectively played roughly a billion chess games. In the last few years, our distributed testing framework, Fishtest, has been operated superbly and has been developed and improved extensively. This work by Pasquale Pigazzini, Tom Vijlbrief, Michel Van den Bergh, and various other developers is an essential part of the success of the Stockfish project.
PGN OF THE GAME:
[Event "TCEC Season 23 - Chess Bonus"]
[Site "https://tcec-chess.com"]
[Date "2022.08.10"]
[Round "2.11"]
[White "Weiss 2.1-dev3"]
[Black "Stockfish dev16_202208061357"]
[Result "0-1"]
[WhiteElo "3363"]
[BlackElo "3645"]
[Variant "Standard"]
[TimeControl "1800+3"]
[ECO "D38"]
[Opening "Queen's Gambit Declined: Ragozin Defense"]
[Termination "Unknown"]
[Annotator "lichess.org"]
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 { D38 Queen's Gambit Declined: Ragozin Defense } 5. cxd5 exd5 6. Bg5 h6 7. Bh4 O-O 8. e3 Bf5 9. Qb3 Bxc3+ 10. Qxc3 g5 11. Bg3 Ne4 12. Qxc7 Nc6 13. Bb5 Rc8 14. Qxd8 Rfxd8 15. O-O h5 16. h3 Nb4 17. Bh2?! { (-0.34 → -0.90) Inaccuracy. Rfd1 was best. } (17. Rfd1) 17... a6 18. Be2 Rc2 19. Rfe1 Rxb2 20. Rab1 Rxb1 21. Rxb1 a5 22. a3 Rc8?! { (-0.82 → 0.00) Inaccuracy. Nc3 was best. } (22... Nc3) 23. axb4 Nc3 24. Re1 Nxe2+?? { (-0.05 → 1.93) Blunder. axb4 was best. } (24... axb4 25. Bd6 b3 26. Ba3 Ra8 27. Bb2 Nxe2+ 28. Rxe2 Ra2 29. Ne1 b5 30. e4 Bxe4 31. f3) 25. Kh1?? { (1.93 → -0.85) Blunder. Rxe2 was best. } (25. Rxe2 Bd3 26. Re1 axb4 27. Bd6 b3 28. Ba3 Rc2 29. Rb1 Bc4 30. Nxg5 b5 31. Nf3 Ra2) 25... a4 26. Rxe2 Rc1+ 27. Ng1 Ra1 28. Rd2?! { (-0.93 → -1.74) Inaccuracy. e4 was best. } (28. e4 Bxe4) 28... a3 29. Bd6 a2 30. Kh2 Bd3 31. Be7 Bc4 32. Bxg5 Kf8 33. Bd8 Ke8 34. Bb6 Rf1 35. Rxa2 Bxa2 36. f3 h4 37. Ne2 Bc4 38. Nf4 Re1 39. g3 Rxe3 40. gxh4 Rxf3 41. Bc7 Kd7 42. Kg2 Ra3 43. Be5 Ke7 44. Kf2 Ra2+ 45. Ke1 f6 46. Bc7 Ra8 47. b5 Bxb5 48. Nxd5+ Kf7 49. h5 Bc6 50. Nb6 Ra5 51. h6 Rh5 52. h4 Ke6 53. Bf4 Rxh4 54. Be3 Rh3 55. Kf2 Be4 56. Bd2 Kd6 57. Be3 Kc6 58. Nc8 Kc7 59. Na7 Bc6 60. Bf4+ Kd7 61. Bc1 Ke6 62. Nc8 b5 63. Bd2 Rh2+ 64. Ke1 Rh4 65. h7 Rxh7 66. Ba5 f5 67. Ke2 f4 68. Kd3 Rh3+ 69. Kc2 Be4+ 70. Kd1 f3 71. Be1 Rh1 72. Kd2 Rh2+ 73. Kc3 Rc2+ 74. Kb4 Rxc8 75. Kxb5 Kd5 76. Bf2 Rc2 77. Be3 f2 78. Bxf2 { Black wins. } 0-1