When one player knocks, indicating that they think they have less deadwood overall than their opponent, the game is over. In contrast, Indian Rummy is frequently played with two decks of cards and necrummy game all appessitates that players create at least two sequences, one of which must be pure (that is, devoid of jokers). Because players must sort through more cards and possible combinations in this variation, there is an added layer of complexity & strategic depth. Experienced players seeking a challenge will find Kalooki, another variation that uses wild cards and permits more complex gameplay, appealing.