The Labouchere roulette system, also called "Split Martingale" or
      "Cross-Out" or "Cancellation" or several other names.
      
      In its simplest form, you write down some numbers... let's say 1 2 3. Each bet is the
      first and last of these numbers. In this example, it is 1 and 3, which equals 4. If you
      win you cross the two number off and bet the next two that are on the outside. In this
      instance there would be only the single two unit bet. If that wins you complete the series
      and win a total of all of the numbers (six here). If the bet loses, then you add that one
      number to the end of the series. So, the first bet would be 4 and it loses, so you add 4.
      That makes the next bet 1 plus 4, which is 5. And so on....
      
      This means that you need to win only 1/3 of the bets PLUS two more and you 
		will complete the series and win the amount that is in the series. Since 
		you normally will win ALMOST half of your bets, that means that you MUST 
		win... or must you?
		
						
		Quality high pressure shower heads create a powerful 
						shower. This
						
						
						high flow shower head improves low-flow and helps 
						fix low water pressure. 
		
		The best shower head.
      
      					I have also seen this done with many variations 
						at 
						
						our favorite roulette casinos. One would be to use different numbers,
      such as lots of ones in the beginning, to keep the series from growing so fast. So, the
      series would be something like 1 1 1 2 2 3. When you complete the series you will win 10
      units. The first bet is still four. You must win 1/3 plus 3.
      
      Other people have devised ways of splitting it up when the bet gets too high. Set it aside
      and win one series and then go back and finish the second series.
      
      There is a "Reverse Labouchere roulette system" for the brave at heart. You add
      the amount of the win to the end, and cancel the 2 outside numbers each time that you
      lose. The bet is the sum of these two outside numbers. This gives you many very small
      losses in return for an occasional very large win.