Amazing attack by Stockfish 16 in King’s Indian Defense as black.
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:
[Event “CCRL Blitz”]
[Site “CCRL”]
[Date “2023.07.13”]
[Round “187.6.748”]
[White “Clover 5.0 64-bit 8CPU”]
[Black “Stockfish 16 64-bit 8CPU”]
[Result “*”]
[WhiteElo “3644”]
[BlackElo “3756”]
[Variant “Standard”]
[TimeControl “-“]
[ECO “E98”]
[Opening “King’s Indian Defense: Orthodox Variation, Classical System, Neo-Classical Line”]
[Termination “Unterminated”]
[Annotator “lichess.org”]
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 { E98 King’s Indian Defense: Orthodox Variation, Classical System, Neo-Classical Line } f5 11. f3 f4 12. Bf2 g5 13. b4 Nf6 14. c5 Ng6 15. a4 h5 16. c6 bxc6 17. dxc6 Be6 18. Ba6 g4 19. Bb7 g3 20. hxg3 fxg3 21. Bxg3 h4 22. Bf2 Rb8 23. Bxa7 Nh5 24. Bxb8 Qxb8 25. Nd3 Ng3 26. Kh2 Bh6 27. Re1 Kh7 28. a5 h3 29. Ne2 Nxe2 30. g3 Nd4 31. Re2 Qd8 32. Ne1 Qg5 33. Rb2 Rg8 34. Nd3 Nh4 35. Kh1 Qxg3 36. f4 Ndf3 *
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