A chess site where you play and chat with an LLM plus custom engine, no tablebases

MikePFrank · x · 2026-09-17

arcturuschess.com enters public beta: your opponent combines language-model deliberation with a tactical engine written from scratch, choosing which positions to investigate without any external chess engines, opening books, or endgame tablebases. Games can span days, include conversation, draw offers, and PGN export.

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