How drunk was the genius who dreamed up this combination? It’s called Chessboxing. And no, it’s not to be confused with Elephant Polo.
Rules:
*5 rounds of boxing alternated with
*6 rounds of chess
You win by:
*checkmate
*knockout
*exceeding chess time limit
Check out (pun intended) the streaming video in the first image on the right hand side of this ESPN article.
http://sports.espn.go.com/espn/eticket/story?page=chessboxing