Roulette is, at its heart, a game of chance. But, over the four hundred-odd years since its creation by Blaize Pascal, various strategies have been developed to give players an extra edge in the hope the ball will land on their number of choice. Big roulette winners have in the past employed a number of tactics to gain an advantage, some legal and some not, but some strategies have survived to this day, one of which is the d’Alembert system.

Raise When You Lose, Lower When You Win

Jean-Baptiste le Rond d’Alembert, an 18th-century French mathematician (and potentially owner of the world’s most pretentious name), invented this easy-to-follow system. It is what’s known as a ‘negative progression system’, which involves you adding one unit to your bet it if you lose and removing a unit from it if you win. Put simply, raise when you lose, lower when you win. Based on the principle of natural equilibrium, the d’Alembert strategy is most successful when applied to a set of even wins and losses for the same bet, which of course you won’t know until you start to play.

Know When to Walk Away

Helpfully, the d’Alembert system includes natural game breaks – walk away when you’ve had at least as many wins as losses, stick tight if you’re on a losing streak until the wins equal the losses, and if you’re on a winning streak, keep going until your wins equal your total losses. When you have an equal number of wins and losses, pick up your winnings and leave the table.

Adapt to Suit

The d’Alembert strategy has the advantage of being safe, which is why it’s so good for beginners to dip their toes into the waters of roulette play. This element of safety however limits the gains you’ll be able to make, although the system does allow for adaptation to increase your risk and therefore your potential winnings.

Overall, the d’Alembert roulette strategy is a great starting point for the amateur roulette enthusiast, with the ability to tinker with the system to suit a growing level of risk, before looking at other systems such as the Martindale or the Fibonnaci.

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