One of the strategies which we should use in the roulette is the classical spy technique, though not for all of us. It consists of standing between two roulette tables while taking note of the numbers that are coming out in each of them. Then, we have to do the most difficult thing in this type of tricks, we should choose one of the two tables to bet in the next round.
To make it clearer, we should pay attention to the numbers that come out in a same round in the two roulettes and then we should choose one of the easiest two operations, that is addition or subtraction.




