Is it brains or brawn? If you’re one of the well-rounded individuals to compete in Chess Boxing, you know it’s a fast-paced mix of both. First notably appearing in a French comic book in 1992, the hybrid sport has leapt from the page to the ring, with growing followings in Berlin and London. Participants must be skilled boxers and at least Class A-strength chess players, as a full match consists of eleven four-minute rounds: six of chess and five of boxing. Talk about an intense check mate.