HERE IS THE LINK WHERE YOU CAN DOWNLOAD THE NEW STOCKFISH 15:
stockfishchess.org
DOWNLOAD SOME COOL STOCKFISH 15 GAMES IN PGN FORMAT HERE:
ccrl.chessdom.com/ccrl/4040/ga...
A new major release of Stockfish is now available at stockfishchess.org
Stockfish 15 continues to push the boundaries of chess, providing unrivalled analysis and playing strength. In our testing, Stockfish 15 is ahead of Stockfish 14 by 36 Elo points and wins nine times more game pairs than it loses.
Improvements to the engine have made it possible for Stockfish to end up victorious in tournaments at all sorts of time controls ranging from bullet to classical and even at Fischer random chess. At CCC, Stockfish won all of the latest tournaments: CCC 16 Bullet, Blitz and Rapid, CCC 960 championship, and the CCC 17 Rapid. At TCEC, Stockfish won the Season 21, Cup 9, FRC 4 and in the current Season 22 superfinal, at the time of writing, has won 16 game pairs and not yet lost a single one.
This progress is the result of a dedicated team of developers that comes up with new ideas and improvements. For Stockfish 15, we tested nearly 13000 different changes and retained the best 200. These include the fourth generation of our NNUE network architecture, as well as various search improvements. To perform these tests, contributors provide CPU time for testing, and in the last year, they have collectively played roughly a billion chess games. In the last few years, our distributed testing framework, Fishtest, has been operated superbly and has been developed and improved extensively. This work by Pasquale Pigazzini, Tom Vijlbrief, Michel Van den Bergh, and various other developers is an essential part of the success of the Stockfish project.
Indeed, the Stockfish project builds on a thriving community of enthusiasts to offer a free and open-source chess engine that is robust, widely available, and very strong. We invite our chess fans to join the Fishtest testing framework and programmers to contribute to the project.
PGN OF THE GAME:
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Nd7 13. b3 Nb6 14. Nbd2 Bd7 15. Nf1 Nb7 16. Ng3 a5 17. Nf5 Bd8 18. Be3 c4 19. b4 axb4 20. cxb4 Bf6 21. a3 g6 22. Nh2 Qd8 23. Ng4 Bg5 24. Bxg5 Qxg5 25. f4 Qd8 26. Nfh6+ Kh8 27. fxe5 Bxg4 28. Nxg4 h5 29. e6 hxg4 30. Qxg4 Qe7 31. Rf1 Nd8 32. Rad1 Na4 33. e5 dxe5 34. Bxg6 fxg6 35. Rxf8+ Qxf8 36. Qxg6 Qg7 37. Qe8+ Qg8 38. Qh5+ Qh7 39. Qxe5+ Qg7 40. Qh5+ Qh7 41. Qe5+ Qg7 42. Qh5+ Qh7 43. Qf3 c3