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New version chess engine: Alexander 4.0

 


Alexander - ShashChess without nnue.
Rating Chess Engines Diary CEDR=3569

Unfortunately, the Stockfish community has decided to shelve the classic evaluation function, despite the fact that the engine is far beyond any human being.
In addition, the classical evaluation function is the only one well understood by a human player.
In fact, even an IM/GM struggles to understand a neural network game.
Conversely, even for a GM, it makes no difference to have a 3100- or 3500-elo engine....
We believe that the future is precisely trying to decrypt the neural network to rewrite classic strategy books in a modern way.
The first step, in our opinion, is precisely to try to compare the two evaluation functions.
In addition, the classical evaluation function allows the implementation of a true handicap mode, based on a real thinking system and the concept of avatars to simulate not only the playing strength, but also the style of a player.
Alexander should be the only reference engine for an OTB player below the IM title.
An IM or GM can occasionally consult ShashChess to try to penetrate the secrets of NNUE.
This is also why we decided to separate the two worlds.
"Scientific research, if it does not improve people's lives, is a sterile fruit of hypertrophied egos"

v.4.0:
Alexander 4.0
Aligned with Stockfish
Jan 12, 2025
Increase the depth margin
Alexander 3.1 vs other engines:
Obsidian 14.02.5/10-510 Games
Yuliana 5.502/10-610 Games
Crystal 8 JA2/10-610 Games
MagicKnight1/10-810 Games
YuliGM Strong 1808242.5/8-38 Games
Big Yuli GM 2210242/8-48 Games
Obsidian 14.05 SE1.5/8-58 Games
Stockfish 20241113 Ivec1.5/8-58 Games
SF-PRO 18.11.20241/8-68 Games
CorChess 202411140/8-88 Games
SF-PRO2 18.11.20240/8-88 Games
SF PB 1311240/8-88 Games
Cfish 13 JA6/7+57 Games
EveAnn 2.12/2+22 Games
Skiull 0.62/2+22 Games
Toad 1.2.02/2+22 Games
Lozza 3 Dev.874772a JA2/2+22 Games
LazySMP 4.02/2+22 Games
Zangdar 2.302/2+22 Games
Protej 20240811a2/2+22 Games
Prometheus 0.2 JA2/2+22 Games



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