CoaChess Launches Free MCP Server Turning Claude, ChatGPT and Gemini Into Personal Chess Coaches
ProfessionalSplit296 · reddit · 2026-09-28
CoaChess founder released v1 of a free MCP server that connects to Claude, ChatGPT or Gemini and grounds chess coaching in your actual opening repertoire data.
- Answers questions like "where are the holes in my preparation?" with real numbers (e.g. "you're ready for 68% of what opponents will play")
- Surfaces unprepared situations ranked by frequency, explains what strong players do and why
- Confirmed suggestions get saved into your repertoire — additions only, never deletions
- Also handles game review, move explanation and practice puzzles
The team deliberately built in one rule: the AI can explain, find and organize, but can't do your training for you. Setup takes 2 minutes with no API key or code; the founder is collecting feedback in the thread.
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