Check out Atomic Chess, our featured variant for November, 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.

Riley's Four Army Chess

If you had a Java-capable browser, you could play Riley's Four Army Chess here.
Keys "s"=save "l"=load "b"=back once

Move a member of each of your two armies each turn, if you can. You may move into check and capture members of the other friendly army. Pawns move one or two orthogonally if the squares are empty, and capture one square diagonally. You may move into check. There is no stalemate. Win by capturing both the enemy kings, or by moving one of your kings to the other's starting square, or starting a turn with the kings on adjoining squares.

Hans Bodlaender's Chess Variants
Hans Bodlaender's Chess Applet

Ed's Chess Variants