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[ARTICLE · art-59776] src=lesswrong.com ↗ pub= topic=artificial-intelligence verified=true sentiment=· neutral

Watch a chess transformer think

A developer released a companion app that visualizes the internal workings of a chess transformer model, allowing users to explore attention heads and residual stream evolution as the model mimics human play.

read1 min views1 publishedJul 15, 2026
Watch a chess transformer think
Image: Lesswrong (auto-discovered)

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https://github.com/David-31415/chessformer_interp/blob/main/README.mdI was poking around at a chessformer which mimics human play and made this fun companion app to visualize a lot of the internals of the engine. Check out how attention heads look, how the residual stream evolves, and play around with it if interested!

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