A Chess variant board has been developed that accommodates three players,
without compromising ANY of the rules, strategies, or competitive challenges
that make Chess the best board game in the world. The only changes from
conventional chess are some protocol issues that must be followed to maintain
order where the teams border each other, which is simple and necessary. Also,
please notice that the trajectory lines orienting from the outer rank, are simply
visual aids to help guide diagonal moves passing through the center. If the path
is clear, a diagonal move starting from the outer rank can pass through the center
and sweep back around to where it originated. The complexities of the third player
are infinite. Your threatened piece may be allowed to maintain occupancy as your
position is beneficial to the threatening player. But how long can it last? This scenario
may exist all over the board. There are multiple trust and doubt situations between
all players. An unexpected move might well result in a cascading massacre. Defense
is crucial since a diagonal move through the center, or a horizontal move around the
center can sneak up behind you. A player can be checkmated by a combination of
both other players or ultimately one player can checkmate both other players at the
same time.

-http://www.3manchess.com/
-http://gizmodo.com

This is really fun when you watch the image upside down its seems fine.but when you rotate it ,its so scary :P . you can definitely save this image ,print and make fun with your friends. Click on the image to see larger image