Chess Coach for Claude

Chess Coach for Claude connects your finished Chess.com and Lichess games to Stockfish analysis and an interactive board inside your chat. Built by Chals AI, it gives Claude engine results to explain: what went wrong, which move was stronger and what to practice next. You can start with your chess username, a game link or a pasted PGN.

Your Chess Coach account starts with 7 days of full access, no card needed. Already using the other assistant? See Chess Coach for ChatGPT.

How to set up Chess Coach for Claude

Use the public Chess Coach listing in Claude’s directory:

1. Click Connect and sign in with email or Google. This connects your Chess Coach account; you never provide your Chess.com or Lichess password.
2. Open a new Claude chat and enable Chess Coach in the connectors menu.
3. Write: “Use Chess Coach to analyze my last finished game. My Chess.com username is your_username. Explain the three most useful lessons for a beginner.”

Claude can retrieve your public games, run a review and explain the results alongside the board. You can ask it to remember your chess username and to use beginner, intermediate or advanced explanations.

These are the connector steps checked on November 11, 2026. Claude’s official connector guide explains connecting a directory app and enabling it in a conversation. A managed Team or Enterprise workspace may require its owner to enable the connector first. For more help, use our Claude setup documentation.

Explore the key moments on the board

Stockfish does the chess calculation on Chess Coach’s server. Claude explains that analysis in the conversation, so you can ask about a mistake without having to read a long engine line. See how Claude analyzes chess games with a connector for the distinction between the assistant and the engine.

The board connects the explanation to the position:

• Jump to numbered key moments and follow the evaluation graph.
• Compare the move played, marked with a red arrow, with the stronger move, marked in green.
• Step through the game and try another move to see the engine’s response.
• Use Why? to ask Claude about the position on screen.
• Open Practice mistakes and find the better moves yourself.

The example below reuses our website’s interactive board demo. It demonstrates the board controls; it is not your game or a screenshot of a Claude conversation.

What to ask Claude after your game

Start with one finished game and keep the follow-up focused:

Use Chess Coach to find my last Lichess game. My username is your_username. Review it and show the key moments on the board.

Show the second mistake again. Explain what my move left undefended before showing the stronger move.

Let me practice the mistakes from this game. Give me one position at a time.

You can also ask which openings are causing problems, search older games or compare a group of finished games. The player profile and drills from multiple games are included in the trial and Pro. Our guide to chess in Claude gives more examples; AI chess analysis explains what a review contains.

Trial, Free and Pro

The 7-day trial includes the board, full reviews, the five-area player profile and training drills. Afterward, Free includes reviews of games older than seven days within fair-use limits, one recent game review a day, the board, mistake practice and opening reports. Pro adds reviews of recent games within its daily limits, the player profile and drills. See current pricing and limits before choosing a plan. Your Claude account is separate from your Chess Coach account.

Chess Coach reviews finished games only and does not assist during a game in progress. It reads public games without your chess password; details are in the privacy policy.

For the underlying connector and developer options, see the chess MCP server guide. For everyday Claude use, start with the directory listing above. Chess Coach is an independent product by Chals AI and is not affiliated with Anthropic, OpenAI, Chess.com or Lichess.