Many chess problems are dedicated to legal games, and very few to illegal ones. So I’ve decided to start another series of the latter!
Every problem I make will have some offbeat thing about it that won’t follow normal chess rules. The position will provide you with plenty of clues as to what it is. Sometimes I will give you some clues. These chess games are meant to the wrong way!
Task: State the rule/s that you believe are being broken based on the position and/or what clues I have/you think are being given. You must also use this rule to complete the given game.
What To Do: With white to move, and black to cooperate, stalemate white in ONE move!