This is chess variant where the pieces function is exchanged.For example rook pieces moves as Knight and knight pieces moves as rook. The rook function could also be exchanged with bishop. The knight function could also be exchanged with bishop.
(hide) If you want to play a game with an opponent of a similar level, you can define a required BKR range for a new game invitation. Then nobody with a BKR outside this range will be able to see/accept it. (Katechka) (show all tips)