Today I wanted to share with you all the system that I have used on occasion. The D'Alembert Strategy. First I want to give you a little background on the system for people who may not be familiar with it. This system was invented by a French mathematician, based on the assumption of equilibrium in gaming contests. Jean Le Rond D'Alembert reasoned that since winning and losing bets must eventually equal one another, a system of adding one chip after each losing bet and subtracting a chip after a winning bet would ultimately result in a win as winning wagers would always be greater than losing ones.
It is not unusual to win only ten of the first thirty wagers in an even-money betting contest. With D'Alembert's system, the player will wager higher and higher amounts until he eventually runs into our old nemesis, the house limit.
The D'Alembert betting system can be fairly successful if it is modified to include no more than nine or ten bets in a series of wagers, so that potential losses are limited. An additional modification to improve the system is to space the bets so that the win of two consecutive wagers will offset prior losses. A series which accomplishes this is 1 2 3 4 7 11 18. With this series, a player would drop back to the lowest bet after winning two consecutive wagers, such as 7 and 4.
I have used this method and personally it is one of my favorites. I stake each bet similar to the 'Avant Dierner'