What Einstein actually meant was that there is no mathematical trick that can help you win at roulette. Each spin is an independent trial and, in the long run, the casino will win. This is different to a game such as Blackjack where the probabilities change as cards are dealt.

If you want to know what is the probability that the coin will come up heads, then that would be: heads / (heads + tails) = 1/2 = . 5. Likewise when playing an even money bet at roulette, that option covers 18 of the 37 possible outcomes: 18/37=. 48648649.

Roulette is primarily a game of luck, as the outcome of each spin is determined by random chance. The layout of the wheel and the distribution of numbers are designed to ensure randomness and make it difficult to predict where the ball will land.

What is the most successful roulette strategy? While there is no strategy that can guarantee a profit in the long run when playing roulette, the Martingale betting system is often regarded as the most successful strategy. It is easy to use and can provide good returns.