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.

Caissa

If you had a Java-capable browser, you could play Caissa here.
Keys "s"=save "l"=load "b"=back once

Christiaan Freeling's game. The queen is royal. Only the queen captures by displacement. Other units exchange. If in check, the queen may move only one square. The square which the queen vacates is destroyed. Queens may pass over, but not land on, a vacated square. Other pieces may bring their squares with them. It is forbidden to move so as to leave any square completely unconnected with the others. I made stalemate a draw.

Thanks to Jacob Middag for his help with the debugging.

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