I believe that since each player still had a chance of winning, the money should be divided based on the number of games each player won when the game stopped. Let's say that the winner would get $90. Player A should take $50 because he won 5 rounds of the game and Player B should take $40 because he won 4 rounds. If it was any other amount of money, the money should still be divided based on the number of games won. I believe this is a fair way to split the money because the game didn’t finish and each player contributed but still had an opportunity to win. However, if the game finished the winner should take all.