For the uninitiated, chess boxing is a rather simple sport that relies on more strategy that you might think. The match starts off with four minutes of speed chess. (That means each player gets only 12 minutes of total chess time allotted for the match.) Then, if the game has not yet been decided, they box for three minutes.
If no one gets knocked out, they take a one-minute break and go right back to chess for another four minutes. They keep alternating rounds of chess and boxing until someone either scores a knockout, gets a checkmate, or a player’s 12 minutes of chess time has been used up.
If the chess match ends in a stalemate, they’ll go the boxing judges’ scores to determine the winner. (And if the judges’ scores are somehow tied, the one playing the black pieces automatically wins.)