Roulette is a game of chance, in which a little ball is being trown in a spinning wheel. This wheel is being divided in several pockets with numbers. The pockets are also divided by color: black and red. The pockets are alternately colored black and red, the high and low numbers are equally divided over the wheel, and also the odd and even numbers are equally placed. When the wheel stops spinning, the little ball falls in 1 of the pockets. The one who gambled on the right number, color, placement of odd/even wins. There is a green pocket as well with the number 0, if the ball falls into this pocket the house wins.
There are 2 versions of roulette: American and French roulette. There is only a little diffrance between them. American rouletta has 2 green pockets, which have the numbers 0 and 00. French roulette only has 1 green pocket, the number 0. This means that there is less chance of winning with an American roulette table, compared to the French style.
There are very many different possibilities of placing bets with roulette, which is one of the thing that makes is a fun game. First of all there are some 50/50 chances, where you have almost 50% chance of winning. For example, you can place your bets on what color it will be, of by betting if the number will be odd or even. Another 50/50 chance is gamling if the number will be high or low, which means 19 and higher or 18 and lower.
Players can also bet some 33% chances. With there bets you have a lower chance to win, but off coarse you get more profit. There chances are for instance betting on the first 12 numbers, or the second or third.
Finally there is the possibility of placing bets on individual numbers, in which the profit are greatest, but the chance of winning is very slim. You can also place bets on 2 numbers (by placing the chip on the border) or 4 numbers (by placing the chip on the crossing).