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Anna 1.2 - new version chess engine

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Anna is an open-source chess engine written in Rust: a UCI engine with an NNUE (efficiently updatable neural network) evaluation and a Stockfish-class alpha-beta search. It plays standard chess and Chess960, probes Syzygy tablebases, runs on several threads, and ships as a single binary for Linux and Windows that works in any UCI chess GUI (Arena, CuteChess, Banksia, ChessBase, Fritz, Scid, En Croissant) or as a Lichess bot through lichess-bot. Its networks are trained by this project with bullet on public Leela Chess Zero and Stockfish data; the code is not a fork of any other engine. Strength is about 3500 Elo on the CCRL 40/15 scale (own measurement, see below).
Author: Liron Katsif

This engine has shown impressive potential in our early tests. Next season, it’s set to compete in the Chess Engine League qualifiers, and with continued development, we’re confident it can break into the top 64.



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