Alice Chess, anyone? I have read about it at British Chess Variants Society, and the work of David Pritchard. It can be accessed at ChessVariants to see about it. Ed Friedlander has a simple PixelPusher program where you can practice it, if the mood strikes.
It plays as standard chess, but two boards are used, and when you make a move on one board, the activated piece moves to the other board.
(hide) In the mood for a quick game that is guaranteed to finish within 2 hours? Create a new game of your preference, select the Time for game and set Time to 0 days / 1 hour, Bonus to 0 days / 0 hours and Limit to 0 days / 1 hours. (TeamBundy) (show all tips)