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.

This is known as the cancellation system. Pick a series of numbers, say 1,2,3,4,5. Your first bet is the total of the two numbers on the end, or 6 units in this case. If you lose it, you cancel out the 1 and the 5, add the six to the end of the series and bet the 6 and the 2, for a total of eight units bet. Lose that one and you add the eight to the series, cancel the 2 and the six and bet a total of 11 (3+8) and so on. If you win, you proceed to the inside numbers until they are all cancelled out. Again, a loser, but an insidious one.