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.

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.

Craps The first time you load up Craps into your casino software you'll wonder what on earth's going on! The good news is that the rules of craps are very simple. It's fast paced and exciting and it conjures up mental images of Las Vegas. It's the huge range of bets that puts newcomers off playing Craps but you only need to know the basics, and which bets to avoid. The Rules: The shooter (dice thrower) steps up to the table and rolls two dice. If the total of the scores on the dice is 7 or 11 then he wins immediately. If the total of the scores on the dice is 2, 3 or 12 then he loses immediately. (2, 3, or 12 is known as Craps) If the total of the scores on the dice is any other number (4, 5, 6, 8, 9, 10) then this number becomes "Point". A white puck is placed above the point number on the craps table to make the game easier to follow. The game is on… The shooter then continues to roll the dice, for as long as it takes, until he either scores the point number or 7. If he scores point, he wins. If he scores 7, he loses. A winning shooter stays at the table and starts again, a losing shooter hands the dice to the next player, and the game starts again.