mens sana in corpore sano

Chess boxing. It is exactly as it sounds. Here's a write-up of the world championship. As for me, let's just say I'm waiting for Ultimate Trivial Pursuit.

Oddly enough, apparently there's a movie named Ninja Checkmate, which is also known as The Mystery of Chess Boxing. And there's another movie named The Roving Heroes, which is also known as Buddhist Fist and Chess Boxing. And there's a single by DJ Surge with the track Chess Boxing (and Countdown).