AMAZING ATTACK BY STOCKFISH 16 IN THE PETROV DEFENSE!
Stockfish continues to demonstrate its ability to discover superior moves with remarkable speed. In self-play against Stockfish 15, this new release gains up to 50 Elo and wins up to 12 times more game pairs than it loses. In major chess engine tournaments, Stockfish reliably tops the rankings winning the TCEC season 24 Superfinal, Swiss, Fischer Random, and Double Random Chess tournaments and the CCC 19 Bullet, 20 Blitz, and 20 Rapid competitions. Leela Chess Zero was the challenger in most finals, putting top-engine chess now firmly in the hands of teams embracing free and open-source software.This updated version of Stockfish introduces several enhancements, including an upgraded neural net architecture (SFNNv6), improved implementation, and refined parameterization. The ongoing utilization of Leela’s data combined with a novel inference approach exploiting sparsity, and network compression ensure a speedy evaluation and modest binary sizes while allowing for more weights and higher accuracy. The search has undergone more optimization, leading to improved performance, particularly in longer analyses. Additionally, the Fishtest framework has been improved and is now able to run the tests needed to validate new ideas with 10000s of CPU cores.Stockfish now comes with documentation, found in the wiki folder when downloading it or on GitHub. Additionally, Stockfish now includes a clear and consistent forced tablebase win score, displaying a value of 200 minus the number of plies required to reach a tablebase win. Furthermore, the UCI_Elo option, to reduce its strength, has been calibrated. It is worth noting that the evaluation system remains consistent with Stockfish 15.1, maintaining the choice that 100cp means a 50% chance of winning the game against an equal opponent. Finally, binaries of our latest development version are now provided continuously as pre-releases on GitHub making it easier for enthusiasts to download the latest and strongest version of the program, we thank Roman Korba for having provided a similar service for a long time.
PGN OF THE GAME:
[Event “CCRL 40/15”]
[Site “CCRL”]
[Date “2023.07.09”]
[Round “886.4.321”]
[White “Stockfish 16 64-bit”]
[Black “Rebel 16.2 64-bit”]
[Result “*”]
[WhiteElo “3507”]
[BlackElo “3419”]
[Variant “Standard”]
[TimeControl “-“]
[ECO “C42”]
[Opening “Russian Game: Nimzowitsch Attack”]
[Termination “Unterminated”]
[Annotator “lichess.org”]
1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 { C42 Russian Game: Nimzowitsch Attack } Nf6 6. d4 Be7 7. h3 O-O 8. Bd3 Nc6 9. a3 Re8 10. O-O Bf8 11. Ne2 h6 12. c4 d5 13. c5 a5 14. Qc2 Ne4 15. Be3 Bf5 16. Rad1 Qc8 17. Rfe1 Ne7 18. Bf4 b6 19. Ne5 g5 20. g4 gxf4 21. Nxf4 Be6 22. f3 Nf6 23. c6 Bg7 24. Kh1 Kh8 25. Rg1 Rf8 26. Rde1 Qe8 27. Qf2 Nfg8 28. Qg3 Qc8 29. Qg2 a4 30. Bb1 Qd8 31. Qc2 Nf6 32. g5 Bf5 33. gxf6 Bxf6 34. Qc1 Bg5 35. Rxg5 hxg5 36. Ne6 *
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