This is so SFnal that it belongs here, fictional or not. (Even though
the first rule of Chess Boxing is just what you're thinking.)
One man makes his move, and respectfully looks up to the gentleman
seated across from him. The second man pensively nods his head in
recognition of a good move. He thinks to himself: One more move like
that will bring about a checkmate, unless I can...
Then they stand up, don a pair of gloves, and proceed to beat the
living crap out of each other
http://www.associatedcontent.com/article/585315/weird_world_of_sports_chess_boxing.html
