Amazing attack by Stockfish!
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.
[Event “CCRL 40/15”]
[Site “CCRL”]
[Date “2023.07.23”]
[Round “888.4.216”]
[White “Stockfish 16 64-bit”]
[Black “Superultra 1.0 64-bit”]
[Result “*”]
[WhiteElo “3515”]
[BlackElo “3362”]
[Variant “Standard”]
[TimeControl “-“]
[ECO “E52”]
[Opening “Nimzo-Indian Defense: Normal Variation, Schlechter Defense”]
[Termination “Unterminated”]
[Annotator “lichess.org”]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 O-O 6. Bd3 d5 { E52 Nimzo-Indian Defense: Normal Variation, Schlechter Defense } 7. O-O Bb7 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 a5 11. a3 Bxc3 12. bxc3 a4 13. Bd2 c5 14. Qe2 Ne4 15. Rab1 Ndf6 16. Be1 Qc7 17. f5 Qd6 18. g4 Rfc8 19. g5 Nxg5 20. Kh1 h6 21. Rg1 Ra7 22. Bg3 cxd4 23. cxd4 Nfe4 24. h4 Nh3 25. Bxe4 Nxg1 26. Qh5 Qe7 27. Rxg1 f6 28. Bf3 Qe8 29. Qg4 Ba8 30. Bf4 Kh8 31. Bxh6 gxh6 32. Qf4 Kh7 33. Rg6 Qf8 34. Ng4 Kh8 *
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