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koala

A free board game — play it in your browser, no install. A geometry-blind Go engine that plays on any Euclidean tiling — square, hexagonal, triangular, the Archimedean and 2-uniform tilings, even aperiodic Penrose — with one graph neural network. Free to play in your browser.

by @vonduffen · vonduffen/koala on GitHubLANG Python★ 7HOSTED ON VONDUFFEN.GITHUB.IOUPDATED 17 Jun 2026

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From the README

**A geometry-blind Go engine that plays on any Euclidean tiling — square, hexagonal, triangular, the Archimedean tilings, even an aperiodic Penrose rhombus tiling — with a single neural network.**

No install, no sign-up. Works on desktop and mobile, runs entirely client-side (offline after the first load), with the trained neural engine as your opponent on every tiling. *(It's a ~4.5 MB page, so give it a moment on the first load.)*

Go is really a graph game: stones live on the intersections of a board, connect along lines, and are captured when a group runs out of liberties.

Read the full README on GitHub →

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