or their opponent. Jokers are not counted during the scoring. In other variations, such as rummy 500 and treppenrommé, discards are placed so that all the cards are visible. At the beginning of his or her turn, a player may take any card from the discard pile, so long as they also pick up all the cards that are on top of it, and the last card picked up is played immediately. If only picking up the top card, the player must keep it and discard a different card from their hand. In a variation called block or tile rummy, players do not continue after going through the pack once – if no players are out, they all lose the points in their hands after the pack has been gone through once. Round the corner rummy, also called continuity rummy, is a variant where an ace may be simultaneously high and low to "wrap around" in a run, as in the following meld: Q-K-A-2. Related games There are a large number of games derived from rummy. Although in North America the word rummy is often used interchangeably for gin rummy, the term is applicable to a large family of games, including canasta, mahjong and rummikub. Melding family The most basic form where play continues until the stock is exhausted or a player achieves a specific number of points. Different cards (and melds in some games) are worth specific points. In some variations, the first meld must meet minimum point requirements or the final meld must include a discard. Some of these are played for four players in partnerships of two. In most variations, players may extensively add to or even rearrange their cards. 500 Rum 5000 Rum Bing rummy Continental Cuajo Desmoche German Rummy Indian Marriage Indonesian rummy (remi) Machiavelli Marriage Red three rummy Panguingue Penang rummy Scala 40 Seven bridge Shanghai rum Speed Rummy Ten pennies Three thirteen Tong-its Treppenrommé Contract family In contract rummy, players are either assigned specific objectives (known or unknown to the other players) or decides their own objectives and announces them before play begins. Players are awarded and or penalized extra points depending on if they successfully meet their objectives. Contract rummy Kalooki Dummy rummy Carioca Phase 10 Liverpool rummy Zioncheck Shedding games In these games, players play until they have a minimal number of points or cards in their unmelded hand. Conquian Robbers'