Game Courier supports many different games. Here is one picked at random:
Pre-Grandchess - Eric Greenwood realized that Christian Freeling's Great Chess could have arisen with this more normal looking position.

Hyperspace Chess

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

Joao Pedro Neto, Feb. 2000. Pieces moving more than 1 square travel through hyperspace at the rate of one square per turn. If a unit finds its destination square occupied by one of the same side, both pieces, and all neighboring units, are destroyed.

You are responsible for noticing pieces about to move out of hyperspace, and protecting your king.

Hyperspace Chess

Chess Variants