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A 230M-parameter chess engine fine-tuned from LFM2.5-230M-Base using Stockfish distillation, capable of predicting chess moves with a language model interface and playing at around 2004 Elo.
Stockfish 19 is announced as a new major release of the open-source chess engine, featuring up to 44 Elo points improvement, upgraded NNUE architecture, and expanded platform support.
An experiment had Claude and OpenAI Codex each write a chess engine from the same prompt, then play 10 games. Claude's engine Fable5 won 10-0, all by checkmate, with Codex's engine playing the identical 24-move line in all five of its White games.
A handwritten C chess engine built for e-paper displays, featuring Grok-designed pieces and responsive rendering. The engineering story was turned into a film by RepoReel titled 'The King Falls Silent'.