This system is exactly the same as the Martingale with one difference: you add one unit when you double your bet. This means you have the possibility of winning back your stake and making an extra bet.
- If you bet €20 on black. You lose if red comes up.
- Now you bet €41 (20+20+1), still on black. You lose.
- Now you bet €83 (41+41+1). You win and the pay-out from the bank is €83.
In this case, your winnings are €83 – 41 – 20 = €22. In the regular Martingale system this sequence would have been 80-40-20=€20.