Roulette is a casino gambling. Its name occurs from the French word meaning “castor”. During game of the croupier (the dealer – in America) – results the roulette wheel having 37 or 38 numbered holes in rotation, and passes round a ball which, eventually, stops in one of the holes.
Fine possibility to play a roulette, without leaving the house, gives the online casino. The particular interest for players is represented by tournaments on game at online casinos.
Principal views of online roulette are: the French roulette, the European roulette, the American roulette, a roulette without Zero and a roulette with progressive jackpot.
One of the major problems for every player is the question of honesty of the casino. In a usual casino where there are real tables for game in hazardous gamblings – blackjack, poker – roulette or Sik Bo, the player directly participates in game and sees all event the eyes.
Unfortunately, and it doesn’t exclude completely possibility of a deceit from a casino.
Still the open space for doubts in honesty of game arises at player of online casinos, where game is conducted on distance, and deals of cards in poker and numbers dropping out in a roulette are generated by the server of a virtual casino. Naturally, there is a question how it it does, casual or not? Rather the popular belief that online casino plays fair to a certain limit, being content with mathematical overweight over the player put in rules of games. I.e. the player can win, but not so it is a lot of. Each casino has a limit of “sensitivity” to loss. At large casinos it above – some thousand or even tens thousand dollars, at small, accordingly, more low. As soon as the prize of the player passes this limit, fair game from a casino comes to an end, and instead of random numbers and deals of cards in poker and blackjack to the player obviously losing results of games are substituted. It is rather probable that it isn’t too far from true.
Following kinds of guarantees are most extended:
1. Independent audit.
2. Granting to the player of all game statistics for the long period and tools of the analysis of this statistics.
3. Cryptographic algorithms (for example, MD5), allowing to guarantee an invariance of sequence of losses of cards or the numbers generated in advance (prior to the beginning of game), whether it will be a roulette or virtual slot machines.
The valid guarantees to players from these three methods are given only by the third – cryptographic algorithms as first two don’t give possibility to catch a casino for a hand at dishonest game.
The detailed game statistics, in general, is useful to the player, but no more that. From a deceit it doesn’t give any guarantees. Thus, worthy considerations there is only a variant with cryptographic control of honesty of game.

