Hearts may not be led until they are broken or one is heart-tight. The Q does not break hearts. If any player's score reaches 100 exactly at the end of a hand, the game does not end, but that player's score is reset to 50. Otherwise, if any player's score is greater than 100 at the end of any hand, the game ends. Low score wins.
Ties are possible.
With 5 players, add a second spade suit. With 6 players, add second heart and spade suits. With seven players, use a double deck sans one club suit.