When one player knocks or says "gin," the goal of Gin Rummy is to minimize the number of points in the player's hand while forming sets and runs. A fwms slotsavorite among competitive players, this version places a strong emphasis on strategic play and fast decision-making. Indian Rummy is another well-known variation. Usually involving two decks of cards, players must form at least two sequences, one of which must be a pure sequence devoid of jokers.