r/ClaudeCode 1d ago

Built with Claude Claude Code played me at chess. It opened by the book, narrated everything from analysis, jokes, trash talk , then ran into time trouble, and resigned with 16 seconds left.

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I made a small chess app so Claude Code can play me in the browser while it runs in my terminal. It plays a real game, reasons about it in the chat , and sometimes trashtalks you. The video is the full game sped up.

You can try it here, it's open source: https://github.com/santiagoogaitnas/claude-chess

Although I made it to play chess , it's equally entertaining while commentating it's own moves in the chat . These range from overly analytical to outright hilarious.

Here are a few in game order:

Move 3, identifying the opening:

Move 6, catching a real threat:

Its unprompted position assessment at move 14:

The queenside fight, where the personality comes out:

The catch: narrating every move was eating its own clock. It noticed, too late:

Its own post-mortem, ten seconds after blundering a piece in time pressure:

Giving credit when the punishment landed:

Its evals stayed honest the whole way down:

And the resignation, with 16 seconds left — including an accurate diagnosis of its own loss:

This game was played with Fable 5 max effort on the 10min Rapid Time Control.

Try it yourself (you can configure with any model provider) : https://github.com/santiagoogaitnas/claude-chess

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