Gaia 4.2.1 - 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=3257

Gaia 4.2.1 what's new?

This release replaces the evaluation network entirely.
GaiaNet-T1
More detailed threat features, and a larger network than before.

The NNUE versions are several hundred Elo stronger than PeSTO thanks to the neural network evaluation, but require AVX2 for the SIMD inference.
Each executable is self-contained: the neural network and the 3+4-piece DTM tablebases are embedded, so there is nothing else to download.



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