Suggesting a market for everything, Tyler Cowan notes the fascinating sports phenomenon of chess boxing.
From Wikipedia, a definition:
A match between two opponents consists of up to eleven alternating rounds of boxing and chess sessions, starting with a four-minute chess round followed by three minutes of boxing and so on. Between rounds there is a one minute pause, during which competitors change their gear. The form of chess played is speed chess in which each competitor has a total of twelve minutes for the whole game. Competitors may win by knockout, checkmate, a judge’s decision or if their opponent’s twelve minutes of chess time elapses.
And some history:
The concept was envisioned in 1992 by cartoonist Enki Bilal, and a match of chess boxing was a major plot point of his graphic novel Froid Équateur. Iepe Rubingh, a Dutch artist, was inspired by Bilal’s book and brought the concept to life in the spring of 2001, fighting under the name, ‘Iepe the Joker’. Rubingh decided that the method of play described in the book, a boxing match followed by a chess match, was impractical. Rubingh instead instituted alternating rounds of chess and boxing.
There’s more, much more, including several film appearances and RZA’s endorsement of the sport. Who says contemporary art isn’t entertaining?
