Whenever a pair of skaters start getting chippy on the ice without it escalating into a fight, referees will be quick to call an Unnecessary Physicality on both players, with the severity of the encounter being judged by the official and the level of penalty (2 or 5 minutes) assigned accordingly. Once both skaters are in the box, a hole will have been cut between adjoined boxes with a chessboard in between. Each player's chess clock is set to half the penalty's duration with the home team getting first move. Whoever wins the match, either by checkmate or by time, may leave the box immediately with the sum of time remaining on both clocks being how long the winner's team has the power play for. Stalemates just result in 4-on-4 hockey being played for the full duration of the penalty.

This gives hockey players a chance to show off their astute mind and knowledge of chess, as the bullet format encourages quick thinking to complement the adrenaline rushing through the skaters' bodies. I think it will also give rise to a new type of agitator since they'll get called for more Unnecessary Physicality penalties if they can provoke a reaction, and if they study chess in their free time they can generate power plays for their team.