The D'Alembert system is basically a variation of the Martingale because you increase your bets after a loss.
However the two vary because the D'Alembert increases bets at a much slower rate. With the Martingale you're doubling your bets each time but with the D'Alembert you're just increasing them by 1 each time.
Also with the Martingale, once you get a win that's it, you go back to betting just €1. With the D'Alembert you decrease your bets by €1 after every win until you get back to where you originally started.
The advantage that the D'Alembert has over the martingale is that you aren't going to hit the table limits and nor are you going to go bust within just a few spins.
The obvious downside is that it isn't as profitable either. You will need to win more bets than you lose and this isn't very likely to happen in the great scheme of things. So to summarize the rules of this system, you increase your bets by 1 after a loss and decrease them by 1 after a win.
Reverse D'Alembert
The reverse D'Alembert is a simple variation of the regular system, only this time you increase your bets after a win and decrease them after a loss. The aim of this is to ride a winning streak to get a few wins in a short space of time.
For example you could bet on red with €3 and then bet on red next time around with 4 then 5 € etc. You would hope to get 6 or more in a row which would give you a nice little win. What you need to remember with these kinds of systems where you increase bets after a win is that you need to set yourself a point where you will walk away and stick to it.
