The Rules of American Roulette are as follows:
The wheel has 36 slots, each numbered from 0 to 35. The wheel has two red and two green slots.
The roulette ball is placed in the red slot, and the player bets on whether the ball will be number 18, 19, 20, or 21. If the player bets on number 18, the roulette wheel will spin and the ball will drop into the green slot; if the player bets on number 19, the roulette wheel will spin and the ball will drop into the red slot; if the player bets on number 20, the roulette wheel will spin and the ball will drop into the blue slot; if the player bets on number 21, the roulette wheel will spin and the ball will drop into either of the green or red slots.
If a player bets on number 18 and the roulette ball drops into the green slot, he or she wins their bet. If a player bets on number 19 and the roulette ball drops into the red slot, he or she wins their bet.
If a player bet on number 20 and the roulette ball drops into either of blue slots, he or she wins their bet. If a player bet on number 21 and then it is determined that there was no Roulette Ball in that particular Slot at that particular time (when counting starts again after each spin), then they lose their bet.
