Chaos: There already is a stalemate rule. Stalemate: "A situation in which further action is blocked; a deadlock." A player that cannot make a legal move on his or her turn loses.
(sakla) 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) (Bütün ipuçlarını göster)