Roullete is a casino game based on spinning a ball around a circular wheel and making bets on the number it will land in. Players may bet on a single number, various groupings of numbers, odd or even, red or black, or if the number is high (1-18) or low (19-36). The payout odds for each type of bet are based on its probability.
The Dozens Bet: This bet, known as douzaine in French, is made by betting on the winning number being in one of the first 12 (or second or third) dozens on the layout. This bet is an even money bet and offers a payout of 2-1.
Odd or Even Bet: This bet is known as impair et pair in French, and wagers that the winning number will be either one of the 18 odd numbers or ones of the 18 even numbers. The 0 and 00 do not count, so if the ball lands on one of them you lose. This bet is also an even money bet and pays 1-1.
Line Bet/Six Number Bet/Sixline Bet: This bet, called sixain in French, is made by placing your chip(s) to straddle the line between two rows of numbers on the layout. This bet is another even money bet and pays 5-1.