To demonstrate that not all boxers are brain dead knuckle draggers, the World Chess Boxing Organisation* (I kid you not) has just held its world championship, which has been won by a German copper, Frank Stoldt.
The rules of the game are simple. Bouts are composed of a maximum of 11 alternating rounds of chess and boxing, with checkmates or knock-outs resulting in instant victory.
Fighters can also triumph if the boxing match is stopped by the referee, or if their opponent times-out at the chess board.
Chess rounds last 4 minutes each, and each player has a maximum of twelve minutes to make all their moves.
It doesn't quite sound the same, does it? "Float like a butterfly, sting like Boris Spassky".
*Its slogan is: "Fighting is done in the ring and wars are waged on the board"