Alas, it turns out that the double-down strategy, although deceptively appealing, is no different from other roulette bets: In the long run, the gambler will still lose at the rate ofR$. 053 per dollar bet.

Yes, the Martingale strategy is legal on betting sites. This strategy, which originated in 18th-century France and is commonly used in games of chance that offer a 50/50 bet, involves doubling your bet after each loss so that the first win would recover all previous losses plus win a profit equal to the original stake.

A roulette game is strictly random and any hope of actually getting an edge at the game died when the new (now relatively old) computers took over the wheels.

Roulette is believed to have been invented by the French mathematician and physicist Blaise Pascal in the 17th century while he was attempting to create a perpetual motion machine. The modern version of the game, with its current wheel and betting layout, was developed in Paris in the late 18th century.