Patzer

Self-hosted Chess.com alternative in one Docker container: import your Chess.com games (or play in the browser) and get a full Game Review from the bundled Stockfish — Brilliant-to-Blunder move classifications, accuracy, estimated Elo, eval graph. The AI coach that narrates it runs on your own Ollama or vLLM host, so nothing leaves your network. Also: seven bot tiers, live games against people on your server, multi-user with a kid mode, EN/BG/ES. MIT, no telemetry.