Mancala is a nice game to play, but it's less nice if you have opponents who double the number of moves by not resigning after you got 25 points (and there's absolutely no way for them to get a win or a draw).
Fencer, could you build in some logic that finishes the game after one of the players gets more than 24 points? The winner is know, and the rest of the game is pointless.
(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)