D’Alembert Blackjack Strategy

D’Alembert Blackjack Strategy
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D’Alembert Blackjack Strategy
3.8/5 on 29 reviews
Published: 06.10.2015 Updated: 21.05.2021
By Richard Binns

D’Alembert strategy is widely used by blackjack players all over the world for a long time. This very system is considered to be one of the most popular after the Martingale one. It is a VERY simple strategy that helps players to reach a positive balance.

The D’Alembert system is based on increasing bet size in case of a loss and on decreasing the wager size in case of a win. Thus, here we can identify two main rules:

  • 1) If you lose a bet, the next wager should be one unit bigger.
  • 2) If you win a bet, the next wager should be one unit lesser.

The series ends as soon as the player reaches positive balance.

The system principle is easy to understand in the example:

1. You bet 1 unit.
Your bet loses; your balance is -1.
You follow the first rule and add 1 unit to your wager.

2. You bet 2 units.
Your bet loses; your balance is -3.
You follow the first rule.

3. You bet 3 units.
Your bet loses; your balance is -6.
You follow the first rule.

4. You bet 4 units.
Your bet loses; your balance is -10.
You follow the first rule.

5. You bet 5 units.
Your bet wins; your balance is -5.
You follow the second rule and reduce your wager by 1 unit.

6. You bet 4 units.
Your bet wins; your balance is -1.
You follow the second rule.

7. You bet 3 units.
Your bet wins; your balance is +2.
You recover positive balance and the series ends.

Thereby, D’Alembert betting system supposes smooth rise and fall of wagers and provides the player possibility to control the game.

D’Alembert Strategy Disadvantages

The main D’Alembert blackjack strategy disadvantage is accounted for the win back complexity. Very often the winning hands session is too short to cover the losses and the negative balance continues to grow.

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