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Engine Open source v0.7.1

Moddable Chess

70 playable variants. Five AI difficulties. Three consumer apps. The most modded game in history finally gets an open-source home.

SUPPORTED VARIANTS

70 variants. Six categories. One engine

THE ONLINE ENGINE

Play anywhere.
Continue everywhere

Create private sessions. Hand off mid-game between phone, tablet, and laptop. Pause a session in May, finish it in October. The board waits.

EMBED API

Embed in your own project

One iframe. Full game board. Theme-aware, responsive, touch-ready.