The maximum, that a player can count on is to reduce the chances of a gambling house down to 2.7% (over a long distance).
Whatever the inventors of 'winning' betting systems told you, it's important to remember that no one can give a 100% guarantee of winning. At a long distance, the casino's house edge is expressed as 2.7% for European roulette and 5.2% for American one. In other words, no matter what strategy you use, the casino, in any case, retains its advantage due to the presence of zero on the roulette wheel, and in the American version of the game, there are two of them. The same situation with roulette: do not waste time looking for a game strategy that to beat online casino for sure because such a strategy will not pass the simplest mathematical test of the probability theory, for example. Even if someone theoretically justifies its existence, any attempts to create a perpetual motion machine eventually do not withstand the laws of physics.
The search for a guaranteed winning strategy can be compared with the attempts to invent the perpetual motion machine.
If you are looking for a betting system that will allow you to get a guaranteed profit from roulette, you simply waste your time in vain. Home / Roulette Guide / How to Win at Roulette