Check out Grant Acedrex, our featured variant for April, 2024.

Since Java is no longer supported in most browsers, our Java applets probably will not run unless you install an extension that will run them. We recommend installing the CheerpJ Applet Runner extension on Edge, Chrome, or another Chromium browser. If your browser still does support Java, and you're not using this extension, make sure this site is listed in your Java exceptions list. You should find this in the Security tab of your Java control panel.

Philosopher's Chess

If you had a Java-capable browser, you could play Philosopher's Chess here.
No save/back keys for this applet yet.

Winner of the 40 squares contest. I adapted it so that a double move is not permitted if the king has started in check. I was not able to enforce the rule against repeating a position.

Philosopher's Chess

Chess Variants

These are simple illustrations rather than strong opponents.

Bug Reports -- Thank you! Keep them coming!

Written by Ed Friedlander


WWW Page Added: Sunday, December 30, 2001