In Craps, winning or losing depends on a variety of different possible outcomes on any roll of the two dice. The two dice can produce many different number combinations; some can be made several ways, others only one way. For example, two dice can roll the number 6 as follows: 5/1, 4/2, 3/3, 2/4 and 1/5. But the number 2 can only be rolled one way: 1/1.

The casino game of Craps is played with a set of two perfectly balanced dice with each die having six white dots numbered 1 through 6. The game is played by tossing the dice from one of the short ends of the table to the other (make sure that both die hit the opposite side wall of the table) Payoffs are made based on the number combination displayed when the dice come to rest.