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Game Courier Preset for R. Wayne Schmittberger's
Extinction Chess

The following preset will enforce the rules, and it will spot extinction and stalemate. This preset was written by Fergus Duniho.

The following preset for Extinction Chess enforces the rules, but it does not spot extinction or stalemate. It was written by Antoine Fourrière

Here is the original preset, which does not enforce any rules.

Click on this button to start the Preset: