a match between two players is made up of up to 11 rounds of boxing and chess sessions, starting with a four-minute chess round followed by two minutes of boxing and so on. between rounds there is a one-minute pause, during which the players change their gear. the form of chess played is rapid chess in which each player has a total of twelve minutes for the whole game. players may win by knocking out the other player, checkmate, a judge's choice, or if the other player runs out of chess time. if a player does not make a move in the round of chess, he will be given a warning by the referee and he must then make a move in the next 10 seconds.