Players can choose to draw a card from either pile during their turn, or they can choose to discard a card from their hand onto the discard pile. A player wins the game when they are able to use all of their cards to create sets and runs that trummyleaderotal seven or multiples of seven. Runs are made up of three or more consecutive cards of the same suit, whereas sets are made up of three or four cards of the same rank. When a player uses all of their cards to form sets and runs that total seven or multiples of seven, they can declare "777" and win the game. However, they can only do this at the start of their turn, before drawing a card. Careful preparation and strategic thought are necessary to create winning 777 Rummy strategies.