The Narrow D’Alembert:
To avoid an excessive increase of capital exposure in the event of a negative series, you can limit the maximum bet in comparison to the original. For example, compared to the case above, the increase (or decrease) in the case of loss or win may be fixed at around 1 euro (for example a fifth of the bet) or 2 (for example, two fifths of wager)
So the progression would then became this one:
Tip 1 - 5 bet euros - lost
Tip 2 - 7 bet euros - won
Tip 3 - 5 bet euros - lost
Bet 4 - 7 bet euros - lost
Tip 5 - bet 9 euros - won
Tip 6 - 7 bet euros - won
Tip 5 - 5 bet euros - lost
Tip 8 - bet 7 euros - won
Tip 9 - bet 5 euros - won - end progression
The Contre D’Alembert:
Another method that differs from the original D’Alambert progression consists in reversing the progression but changing the scheme of increments: that is to say we enhance of one unit in case of winning and repeat of 1 unit in case of loss. You can choose the sum according to your preferences when you start the game .
So the progression would then became this one:
Tip 1 - 5 bet euros - lost
Tip 2 - 4 bet euros - won
Tip 3 - 5 bet euros - lost
Bet 4 - 4 bet euros - lost
Tip 5 - bet 3 euros - won
Tip 6 - 4 bet euros - won
Tip 5 - 5 bet euros - lost
Tip 8 - bet 4 euros - won
Tip 9 - bet 5 euros - won - end progression
