Roullete, a French word that means little wheel, is a casino game in which players wager on the outcome of a spinning cylinder with numbered holes. The player chooses to place a bet on a single number, various groupings of numbers (such as red or black), whether the numbers are odd or even, or if they are high (19-36) or low (1-18).
In America, roulette has one of the smallest followings among casino games, drawing nowhere near the crowds that casino goers see at baccarat tables. However, it is a mainstay in European casinos, particularly those located in Monte Carlo. The game has many fanciful origin stories, including being invented by 17th-century mathematician Blaise Pascal, and having been passed to him from the Chinese.
The Roulette wheel consists of a solid wooden disk slightly convex in shape, with a metal rim surrounding the perimeter of the wheel. Thirty-six compartments, painted alternately in red and black and numbered nonconsecutively from 1 to 36, surround the central void, which is painted green on European wheels and black on American ones. A croupier spins the wheel and drops a ball into one of the numbered holes, and then announces the winning number and collects any losing bets or adds them to the casino’s income.
There are many different systems that are used to increase the odds of winning at roulette. Perhaps the most well-known is the D’Alembert System, which is based on the theory of equilibrium. The basic idea is that if you begin to see lots of one outcome, such as reds, then the opposite outcome must kick in to bring things back into balance. While this doesn’t guarantee you a win, it does make the odds of winning much more favorable than they would otherwise be.