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.
In American roulette, the table has tiles labeled 1st, 2nd and 3rd. The corresponding drawers on the French table are arranged in two areas and labeled 12P , or Premier Douzaine (numbers 1 through). 12), 12M , or Moyenne Douzaine (numbers 13 to 24) and 12D , or Dernire Douzaine (nos. 25 to 36).