The Contra D'Alembert System

The original D'Alembert system was designed by a 17th century mathematician, and aims to quickly recover a losing bet - but if you fancy ignoring the advice of an ancient seer (after all he never played online roulette!), then try turning the system on it's head with Contra D'Alembert. Unlike the original system, this strategy seeks to maximise a winning streak and make the most of your hot runs!

Rather than reducing your stakes when you strike a winning bet (as in the original D’Alembert System), the Contra D’Alembert system requires you to double your bets when you win - and keep on doubling them until you hit a losing bet!

The Contra D’Alembert system is usually applied to even bets (such as black or red). While the original system was designed as a cautious way of grinding out a steady profit from the table - the Contra system plays a high stakes game that tries to take the table for profit as soon as possible.

Let's take a look at how you might apply the Contra D'Alembert once you're inside the roulette casino; if you begin with a starting winning bet of £2, double your next bet to £4. Keep on doubling your bets until you lose - at this point you return to your original stake and start the system again.

Contra D’Alembert aims to build enough profit from winning bets, to cover you when you hit a loss. It's more daring than the original system which tells you to reduce your bets after a win. The system isn't for the faint hearted, but if you love the thrill of a bigger win, go against the original system with a Contra strategy.

Although it's advisable to always place Contra D’Alembert wagers on even bets, you can make your own choice whether you stick to the same even bet (for example either red or black) or alternate between them. If you place a winning bet on red, you may like to stay faithful to red, or switch your next bet to black.

As with all roulette strategies, you always run the risk of hitting a spell of losing bets, so have the will power to quit Contra D’Alembert when you're ahead.

Some clever players alternate between the traditional D’Alembert and Contra D’Alembert systems - so if you're on a hot run with one system and feel your luck is about to run out, try reversing the system - the choice is yours!