House odds

 House odds

If you use the American-style wheel with 0 and 00, your bank advantage ("vigorish") rises to 2 more parts in 38 or 5.26 percent of all bets. The 5-number line bet is the exception, with a house advantage of approximately 7.89%.

Roulette is identical when played outside the United States and Caribbean. The wheel and layout only contain one zero (0). This means that the bank's advantage is only 2.7 percent. Some casinos will imprison any even-money bets, such as red, black or odd, even, high or low. The house will collect half of every imprisoned wager on the next spin. If it does not, it will collect all lost bets and return any winning bets. The bank's advantage for even-money bets drops to around 1.35 percent with this rule.

Systems

There are many betting systems that can beat the wheel. These systems tend to be centered around even-money betting. Modern mathematical theory as well as two centuries worth of playing have proven that it is impossible beat roulette using any kind of betting system. It doesn't matter how a player mixes and changes his bets, because the bank will always have an edge on all types of bets. Most betting systems divide the losses and wins equally. This means that a higher chance of winning can be offset by a lower loss once it occurs. Martingale (or doubling up) is the most well-known betting system. It involves placing even-money wagers and then increasing your bets by increasing your stakes after every loss, until you win. This system is believed to have been created before the invention of the Roulette wheel. Two other well-known systems, also based on even-money bets, are the d'Alembert system (based on theorems of the French mathematician Jean Le Rond d'Alembert), in which the player increases his bets by one unit after each loss but decreases it by one unit after each win, and the Labouchere system (devised by the British politician Henry Du Pre Labouchere, although the basis for it was invented by the 18th-century French philosopher Marie-Jean-Antoine-Nicolas de Caritat, marquis de Condorcet), in which the player increases or decreases his bets according to a certain combination of numbers chosen in advance. Computer simulations have shown that the Labouchere method wins more than 95 per cent of the times, but it loses more during the remaining 5 per cent of the games. This shows that it cannot overcome a house advantage. Albert Einstein stated, "The only method to beat roulette": Steal the money from the dealer. roulette odds