Amazing attack by Stockfish 16 in Lasker-Pelikan Sicilian 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 “2023.07.12”]
[Round “187.6.683”]
[White “Leelenstein 11.1 64-bit RTX2080”]
[Black “Stockfish 16 64-bit 8CPU”]
[Result “*”]
[WhiteElo “3631”]
[BlackElo “3756”]
[Variant “Standard”]
[TimeControl “-“]
[ECO “B33”]
[Opening “Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation”]
[Termination “Unterminated”]
[Annotator “lichess.org”]
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 { B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation } 11. Bd3 Be6 12. O-O Bxd5 13. exd5 Ne7 14. Nxb5 Bg7 15. Nc3 e4 16. Be2 Ng6 17. Kh1 Qg5 18. f3 e3 19. g3 f4 20. Ne4 Qe7 21. g4 Bxb2 22. Rb1 Be5 23. c4 h5 24. g5 O-O 25. Qc2 Rab8 26. Rfd1 Rxb1 27. Qxb1 Qd7 28. c5 dxc5 29. d6 Qh3 30. Qb7 Rd8 31. Nf6+ Kg7 32. Bc4 Ne7 33. Ne8+ Kh8 34. Kg1 Qh4 35. Kh1 Qh3 36. Kg1 Bd4 37. Rxd4 Qh4 38. Rd1 Rb8 39. Qe4 Qxg5+ 40. Kh1 Rb2 41. Bf1 Ng6 42. d7 Qh4 43. Bg2 Rd2 44. Qb1 e2 45. Rg1 Qe7 46. Bh3 Qe3 47. Qa1+ Ne5 48. Re1 Qxf3+ 49. Bg2 Qe3 50. Nf6 f3 51. Bf1 exf1=R+ 52. Rxf1 *
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