Game Courier supports many different games. Here is one picked at random:
Dragonet Chess - The Dragonet flies to any square queenwise, captures piece behind landing square (with zrf).

Melee Chess

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

C. George Boeree's game, in which you win either by checkmating the very mobile king, or checkmating his citadel.

Professor Beoree has a huge site devoted to psychology, the Amish, spelling reform, and so forth. Follow the link. Thanks to internet friend Andy Maxson (April 2007) for correcting my faulty placement of dabbaba and alfil.

Melee Chess

Chess Variants