In the world of casino games, roulette is a classic. Along with blackjack and craps, roulette is a mainstay in any full service casino in the United States, and the game is even more popular in Europe, where it's a cultural and historical part of the gambling scene. Roulette was popular in Europe since the 18th century and today it is played online all over the world.Roulette was played in Paris since 1796 and nowadays it almost has't changed. Roulette comes from multiple other games. To make a modern roulette game an Italian ball game called "biribi" and another wheel game that involved colors but not numbers were combined. The English game "Roly-poly" which consisted of black and white slots was launched in 1720. So we can consider roulette a fusion of birib and Roly-poly.To understand a game is to enjoy it.Only in case you understand game you can enjoy it. And it's the amount of pleasure you take away from the tables but not your odds will increase due to the knowledge of the game.

Roulette is a wheel game. The wheel of the roulette is spinned on an axis which is placed in a bowl. The wheel consists of 37 or 38 slots depending on the type of roulette:American roulette wheel contains 38 slots,European - 37.There are black and red numbers. The 0 or 00 are green.8 players can participate the game at the same time.Accordind to the rules the croupier spins the wheel of roulette in one direction and then rolls the ball around the edge of the wheel in the opposite direction.After the ball had fallen at one of the slots and stopped, the croupier announces the winners.You are to guess the number of the slot in which the ball will stop and to make the right bet. When you start the the game at the roulette table, you have to buy chips from the croupier which differ from all other chips in the casino. Each player has chips of his own color that's why the croupier knows who to pay off at the end of each spin. When the croupier announced "No more bets", hlayers cannot make bets.After the result of the spin is determined, the croupier puts a marker on top of the winning number on the table.The marker is placed on top of the chips, if there are bets on that number. The croupier sweeps off the table all losing bets and after that the winning bets are paid off.
Some casinos have special rules.

In Prison/En prison
In case the ball stops at zero slot, the croupier will not collect red/black, odd/even and first half/last half bets, they will stay on the table - in other words they are in prison. The players can win their original bet back during the next spin;if their bet wins they get their original bets back without additional gain. If it's zero again the bets remain in prison one more time and so on. As this special rule reduced the casinos edge, it's greatly to the advantage for the players.

La Partage
In case the ball stops at zero slot, the croupier will not fully collect red/black, odd/even and first half/last half bets. The croupier will collect only a half of player's bets and will return the rest to the players. As well as the In Prison rule, the La Partage rule also reduces the casinos edge to only 1.35%.

The wheel is unbalanced.
Of course there always exists a chance that the wheel is not balanced well. That’s why there are unfair gamblers who use it if they notice that the wheel is unbalanced. But nowadays even if you try hard you will never find such a wheel. Knowing the story of Jaggers casinos constantly examine the wheels in order to make sure that they are well balanced. The casino staff examine the wheel every time before gamblers begin to play. In the case of an unbalanced wheel they recalibrate it at once.
2. Most gamblers believe that with every new spin the chances of the ball landing in the number that has not been hit yet become much higher.
It is not so. The probability to hit a number every spin is the same 1 out of 38. If the ball hasn’t landed in this very number for a long period of time it doesn’t mean that it is more likely to do it in a short while. Roulette is a pure game of chance. With every spin the chances of hitting any number are 38:1.

The numbers 1 through 36 are divided evenly among red and black "pockets" on the Roulette wheel. The pocket is an area, in which the ball can land. The Roulette wheel also has on or two green pockets. The green pockets has numbers 0 and 00 or only 00, depending on the kind of Roulette.
When all bets are made the dealer spins the wheel counter clockwise and then the ball is released along the track. The wheel loses speed and as a result the ball comes down from the track, bounces a little and then lands in one of the pockets.