Free Roulette System Description

Free Roulette System Description. The Martingale is the best-known roulette betting system. There are a lot of variations of it. The principle is following: when you win, you pocket your bet. But when you lose, you double the size of your previous bet. By doing this in case you win, you get back your previous loss and one more unit. And so on.
The Martingale System works great only in case you have an infinite bankroll and no betting limits.
The d'Alembert system is also rather popular. This system assumes that after a win, a player is less likely to win again. That's why after you win, you subtract a chip from your bet. The d'Alembert system also assumes that you are less likely to lose after a losing spin, so in that case, you add a chip to your bet. The fact that the roulette wheel has no memory and each spin is an independent trial with exactly the same odds of a win or loss is the previous spin is a weak point of the system.