These are the probable chances on which the ball will land. All the numbers face towards the inner side of the roulette wheels. Similarly, to the left of zero, there are nine numbers in black, (20, 22, 26, 28, 29, 31, 33, 35) and then there are nine numbers in red, (1, 3, 5, 7, 9, 12, 16, 18). To the right of zero in the arc, there are nine small numbers in black (2, 4, 6, 8, 10, 11, 13, 15, 17), and then nine big numbers in red (19, 21, 23, 25, 27, 32, 34, 36) on the outside. The wheel is divided into two colors, red and black. European Roulette WheelĪs per standard rules, the European roulette table has 37 numbers, starting from 0, then 1 to 36 on which bets are placed. But the pattern from single zero to double zero wheels is very different. Instead, a certain specific order of number is followed at most casinos about existing rules, generally beginning from a single zero. Though it may be hard to discover the pattern of numbers on the wheel, they are not distributed randomly. The rules, functions, operations remain the same since the 18th century. The wheels of the Roulette have been in the game since hundreds of years, whereas the modern wheels are more reliable and consistent. Roulette is one of the popular wheel game played across the casinos all over the world.