The D'Alembert system was created by Jean le Rond d'Alembert, a French physicist, mathematician and philosopher who lived in France in the 1700s. The system that bears his name is also known as the pyramid scheme.
The basic principles of the system
The D'Alembert system, which is designed to apply to even money bets, is based on the idea that a winning bet is likely to be followed by a losing one and the other way around.
How does it work?
First of all, you should decide the amount of your initial wager. This can be determined according to the minimum limit set at the table. If you play at a table with a minimum limit of 10 USD, your initial wager will be 10 USD. Start with the minimum effort. Here is a possible sequence of even money bets following the D'Alembert system:
- You bet 10 USD. You win.
- You make the same bet. You bet 10 USD and you lose.
- You increase the bet by a unit. You bet 20 USD and you lose.
- You increase the bet by another unit and thus bet 30 USD. You win.
- You decrease the bet by a unit. You bet 20 USD and win.
- You decrease the bet by a unit. You bet 10 USD. You lose.
- You increase the bet by a unit. You bet 20 USD.
The usefulness of the D'Alembert system
The problem with the D'Alembert system is that it is based on the logical fallacy that bets with even odds have two even outcomes. If you win, you will lose the next game and vice versa. This is the essence of "The gambler's fallacy" (The player's fallacy). This is based on the belief that two events - for example, two spins of the roulette wheel – must have different outcomes. The truth is that the two spins are independent and that the foregoing does not determine the outcome of the second in any way. D'Alembert made important contributions to mathematics and science, but his roulette system was not one of them. This system is not recommended.
The Fibonacci system
The Fibonacci system is based on a sequence of numbers used in music, science and other fields. It is named after the Italian mathematician Leonardo of Pisa, who was also known as Fibonacci. He lived during the late 1100s and the early 1200s. Fibonacci did not invent the system that bears his name, but was the one who introduced the Hindu-Arabic number system into Europe. The number series was later on used to create a system for the game of roulette.
The basic principles of the system
Fibonacci betting system is based on a series of numbers used for betting on even odds. Here is the number sequence: 1-1-2-3-5-8-13-21-34-55-89-233-275… The numbers represent the betting units.
The basic idea of this system is to bet on the next number in the series every time you lose. When you win, you go back two steps. The idea is that when you lose, you should increase your bet to compensate for the loss and to (apparently) have a better chance of winning after a loss. When you win, you decrease the bet by one unit because it is supposedly more likely to lose the next bet.
How does it work?
Let's look at an example of the Fibonacci betting system for a sequence of eleven bets:
- You bet 1 unit. You win.
- You bet 1 unit. You lose.
- You increase the bet by 1 unit. The bet now consists of two units. You lose.
- You bet 3 units. You lose.
- You bet 5 units. You win.
- You go back two steps and bet two units. You lose.
- You bet 3 units. You win.
By the end of the sequence, you have gone even. The next time you bet, you bet 1 unit.
The usefulness of the Fibonacci betting system
Similarly to many other systems detailed at www.bestonlinecasino.co.uk, the Fibonacci betting system also embraces what is usually called "The gambler's fallacy" (the player's logical fallacy). The system is basically a conservative variant of the Martingale system and is not recommended.
