The D'Alembert System

First introduced in the mid 1700’s by Jean le Rond D’Alembert, a famous mathematician and philosopher, the D’Alembert system is probably the most famous of all the roulette systems. The D’Alembert system is sometimes known as the Pyramid system because of its basic wagering structure.

This system is designed for even chance bets, like Red and Black. The aim of this system is to find a balance between the two chances. The D’Alembert System works by the assumption that over a given period of time, there will be an equal number of wins and losses.

The way the system works is like this. You choose a starting bet (this bet must be above the house minimum, but not too high in case you need to raise the bet) and an increment. If your bet wins, you will reduce the bet amount by the increment amount. If your bet looses, you will increase your bet amount by the increment amount.

This system has two big benefits over some other systems. The first is that your bets don’t increase as fast as some systems, and this lets you stop the session at any time for a small to medium loss. The second benefit is that if you find your bankroll to be positive during the game, you can stop the system at any time and accept a win.

Of course, there are downsides even to this system. Firstly, having the 0 and 00 on the wheel gives the house an edge of 5.276% and means that overall this system will loose at least a small percentage of your wager. There is also a possibility that there will be very long runs of the same result, meaning that it may be impossible to keep on increasing your bet. You may also not be able to keep reducing your bet if you have a long winning streak as well.

When you play using the D’Alembert system you will only win if a balance of wins and losses has been achieved starting with a series of negative spins. This system works only if there is a balance between winning and loosing bets. This system is not as potentially dangerous as the Martingale System but you must always be prepared for some very large losses.