This system is a little more sophisticated, but the results can be as devastating as our old friend Martingale. It is a series of numbers, each of which is the sum of the last two numbers in the system, like this: 1-1-2-3-5-8-13-21-34-55-89-144. Advice about betting it varies, but one of the more common is to bet the series as you lose. If you win a bet, fall back one in the series If you win that one, start over, if you lose, continue on in the series.

You win after the first roll if the shooter rolls a seven before making his point. you lose if the shooter successfully make his point. For example, if the shooter's "Come Out" roll is an eight, the shooter continues to roll until an eight or seven is rolled. A roll of eight loses, a roll of seven wins. All intervening rolls are irrelevant to the "don't pass line" bet.Once either the seven or point has been rolled, the next roll becomes the new "Come Out" roll.