this is awesome:
Dutch artist Iepe created the sport of chess boxing, which began in earnest in Amsterdam in November with several matches of six four-minute chess rounds alternating with five two-minute boxing rounds, with victory coming by knockout, checkmate, or, if the match goes the distance, judges\' scoring of rounds. Both the Dutch Chess Federation (KNSB) and the Dutch Boxing Federation (NBB) have endorsed the sport, and cards of matches have been scheduled for Berlin and Moscow.