http://www.chessboxing.com/
The Art of Chess Brawls
Dutch artist Lepe Rubingh has livened up the monotonous game that's chess. How? By infusing literal punches into the strategic but dreary sport.
Called chessboxing, it alternates between beating each other's brains out through strategic moves on the chessboard and trying to knock each other out by punching each other's faces.
Is there a market for such a sport in the U.S.?

now, not only can we beat up others using Chess but now we can beat them up physically as well - if you feel you want to clear the mental and physical cobwebs try ChessBoxing - now opening at a smelly, smoky, dungeon soon near you