Aces are high (above a King) or low, (below 2). Two decks are required for a game of up to four players. Shanghai Rummy is played with multiple decks of 54 standard playing cards, including the Jokers. Shanghai rum is a Rummy card game, based on gin rummy and a variation of Contract rummy played by 3 to 8 players.

A meld of four cards in the game Shanghai rum