D’Alembert system

The D'Alembert is a simple betting system, which is based on the Martingale with a few tiny changes. This system tells you to raise your bet one unit after you have lost and lower the bet by one unit if you win.

For example, you're playing baccarat where a $5 is the minimum bet (that is one "unit"). So, you start by placing a bet of $5. After the loss, your next bet will be $10 that is 2 units. In the case of winning, the bet will be $5. If you lose the second hand your bet will be $15. If this hand wins, you bet $10, so you lower only by one unit, and not to return to the original bet.

The D'Alembert system is a risky progressive betting system in any case. The player must play with caution using the D'Alembert; on the other hand it's a less dangerous system than the Martingale (where it is necessary to double the bet instead of raising it by one unit).

1 ⇒ lose ⇒ 2 ⇒ lose ⇒ 3 ⇒ win ⇒ 2 ⇒ lose ⇒ 3

It is a mathematically losing system.

There is also Reverse D'Alembert System. You have to add 1 unit to the following bet after each win and decrease after each loss.

5 ⇒ lose ⇒ 4 ⇒ lose ⇒ 3 ⇒ lose ⇒ 2 ⇒ win ⇒ 3 ⇒ win ⇒ 4 ⇒ lose ⇒ 3

But you have to stop in time.Don’t increase your bet too much. Your winning streak can suddenly finish.