Amazing attack by Stockfish 16 against ther Evans Gambit!
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 40/15”]
[Site “CCRL”]
[Date “2024.05.03”]
[Round “931.1.865”]
[White “Berserk 13 64-bit”]
[Black “Stockfish 16.1 64-bit”]
[Result “*”]
[WhiteElo “3590”]
[BlackElo “3624”]
[Variant “Standard”]
[TimeControl “-“]
[ECO “C52”]
[Opening “Italian Game: Evans Gambit, Anderssen Defense”]
[Termination “Unterminated”]
[Annotator “lichess.org”]
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O Nf6 { C52 Italian Game: Evans Gambit, Anderssen Defense } 8. e5 d5 9. exf6 dxc4 10. fxg7 Rg8 11. Bg5 Qd5 12. Re1+ Be6 13. Nbd2 Rxg7 14. Ne4 Rg6 15. Nh4 Rxg5 16. Nf6+ Ke7 17. Nxd5+ Rxd5 18. Rxe6+ fxe6 19. cxd4 Nxd4 20. Qb1 b5 21. Qxh7+ Kd6 22. g3 Bc3 23. Rf1 Kc6 24. Kg2 Kb6 25. Qh6 Bb2 26. g4 Rad8 27. Nf5 c3 28. Ne3 Rc5 29. h4 c2 30. Qf6 Rd6 31. h5 c1=Q 32. Rxc1 Rxc1 33. h6 Rg1+ 34. Kh2 Rc6 35. Qf8 Rcc1 36. Qb8+ Ka5 37. Qxa7+ Kb4 38. Qa8 Nf3+ 39. Kh3 Be5 40. g5 *
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