Gaia 4.4.3 - new version chess engine

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Gaia, a free and strong UCI chess engine written in Rust.
See also: gaiachess.fr — the original Gaia website
Gaia 4 is a complete rewrite from C to Rust — not a single line of the original code survived. Back after 20 years.
Author: Jean-Francois Romang  Rating Chess Engines Diary CEDR=3911

Gaia what's new?

New network architecture and its first network, gaianet-t7: about
+10 Elo at 2+0.1 over 4.4.2's network. Networks from earlier releases no
longer load (EvalFile).
Stronger search: all 209 search parameters retuned, and ProbCut tried
less often.
Robustness fixes for malformed input: FEN, clock values, damaged
tablebase files, networks without their integrity footer.

Gaia 4.4.2 vs other engines:

Coda 0.9.515/30+030 Games
Stockfish dev-2026102414.5/30-130 Games
Clockwork 2026102518/20+1620 Games
Sapling 2.0.017/20+1420 Games
DON dev-2026102510/20+020 Games
PlentyChess 8.0.910/20+020 Games
Stockfish dev-202609229.5/20-120 Games
Arabica 0.2.09/10+810 Games
Chessenger 3.19/10+810 Games
Grail 3.0.09/10+810 Games
ChesslabNNet97.5/10+510 Games
PZChessBot 7.16/10+210 Games
Lucky Chess 2.06/10+210 Games
Arasan 26.15.5/10+110 Games
Integral 8 JA5.5/10+110 Games
Stormphrax 8.0.05.5/10+110 Games
Ravager 35.5/10+110 Games
Tcheran 14.05.5/10+110 Games
Caissa 2.05/10+010 Games
PlentyChess 8.0.75/10+010 Games
Hlamnick 1810265/10+010 Games



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