They call it "the thinking man's contact sport." it's Chess Boxing. I'm not kidding. Two big burly guys get in the ring and pound on each other for a few minutes. Then they set up a card table and play chess for a few minutes, then go back to pounding on each other, followed by more chess and more pounding. You win by checkmate or TKO, whichever comes first.

I'm not sure where this odd biathlon of brains and brawn began, but it seems to be spreading, with clubs in London, Los Angeles, Germany, India and Siberia, not to mention over 1300 fans on Facebook. 

Click HERE to check out, or HERE to visit the World Chess Boxing Organization's website. Now you've seen everything.