On the software side of things, the Pi is running the mature Stockfish open source chess engine.

Someone made a microcontroller-powered chess bot you can challenge online, and it's open source Elecrow CrowView Note 14 review featured dog-chess-ui ...

The winner of last four World Computer Chess Championships has been disqualified and banned for the plagiarizing of two open source chess engines.

Useful links: lczero.org, the main hub for everything regarding Leela Chess. Lots of things to explore! play.lczero.org, play against Leela yourself!