D'Alenbert Gambling System

Negative progression and insurance system.

This is a very simple system that is a combination of the Martingale and Insurance betting systems. Bets are raised one unit after each losing bet and lowered one unit after each winning bet. The sequence and amount raised or lowered can be varied to suit particular games and odds.

The success of this system is dependant on there being an equal spread of the 'even odds' option i.e. 100 spins results in 50 black and 50 red. It's very common for this not to happen and of course there is the zero to take into account as well.

Another point is that you have to be aware of instances where although you might get 50 red / 50 black in a session you could get a clump of red numbers at the beginning of your session and find that the rest of the session favours the black numbers which means your progression on red gets higher and higher and your will to continue fades because there is no guarantee of a turnaround. For this system to work all the time you need an even spread of the even odds bets, i.e. no long periods of favoritism for either side of the even odds bet.

* Negative progression betting systems: You increase the bet when you lose. Require more capital and usually employed to force a winning outcome following a losing streak. (Avoid these systems if you can they will not do your nerves any good and they are painful when you lose.)

* Insurance betting systems: You decrease the amount of your bet when you win, usually following a high initial bet or following short 'let-it-ride' progressive wins. (Play it safe. A good compromise.)