There are a number of bets than can be played on European roulette and these cover particular sections of the wheel. Voisins (neighbour bet)
A bet on five numbers straight up that are adjacent to one another on the wheel. A bet on 5 and the neighbours (et les voisins) on a single-zero wheel is a bet on 5 and the two numbers either side of it on the wheel (a straight up on the numbers 16, 24,5, 10 and 23). Seventeen and the neighbours would be an en plein bet on each of the numbers 2, 25, 17, 34 and 6.

Bets covering sections of the wheel
There are a number of bets designed to cover sections of the single-zero roulette wheel using the minimum number of chips. The wheel shows the names of each section of the wheel.

Tiers du cylindre
This bet covers the section of numbers between 27 and 33. It includes the numbers 27, 13, 36, 11, 30, 8,23, 10, 5, 24, 16, 33. It is often referred to as tiers. This bet uses just six chips to cover this section of numbers. The bets placed are six splits (chevals) on the numbers 5/8, 10/11, 13/16, 23/24, 27/30, 33/36. A winning number on this section of the wheel wins 17 chips and loses five chips. The odds for this bet work out at 11/1.

Voisins du zero
This bet covers the section of the wheel from 22 to 25. It includes the numbers 22, 8, 29, 7, 28, 12, 35, 3, 26, 0, 32, 15, 19,4,21,2 and 25. The bet is made with nine chips. The bets made are 0/2/3 (two chips) street. Splits (chevals) of 4/7, 12/15, 18/21, 19/22, 32/35 and a four-number bet 25/29 (two pieces). If the numbers 0, 2 or 3 is spun, 22 chips are won and seven chips are lost. If numbers 25, 26, 28 or 29 is spun, 16 chips are won and seven are lost. If any of the other numbers is spun 17 chips are won and eight are lost.

Les orphelins (the orphans)
This is a bet on the sections of the wheel that are not covered by the tiers and the voisins du zero. It covers two opposite sections of the wheel. The numbers covered are 9, 31, 14, 20, 1, 6, 34 and 17. The bet is made with five chips. It consists of number 1 straight up and the splits 6/9, 14/17, 17/20,31/34. If number 1 is spun, 35 chips are won and four chips lost. If number 17 wins 34 chips are won and three chips are lost. If 6, 9, 14, 20, 310r 34 is spun, 17 chips are won and four chips are lost.

Complete bet
This is a bet that allows a player to bet the maximum stake on a number. Suppose you want to bet the maximum possible amount on 0, as well as a straight up, it is possible to play all the other bets associated with 0. These are the splits 0/1, 0/2 and 0/3; the streets 0/1/2 and 0/2/3 and the first four 0/1/2/3.
If the maximum bet for a straight up is £1000, the maximum stake on the other bets will be:
split, £2000
street, £3000
corner, £4000.

By betting with £1000 chips, 17 chips will be needed to make the maximum possible bet:
one straight up = £1000
three splits = £6000
two streets = £6000
first four = £4000.
total stake = £17000 or 17 X £1000 chips.

The completes only takes account of the inside bets. The outside bets associated with black, even, low, the dozen and the columns are not included.

The number of chips required to place a complete varies depending on the number. This is because each number has a different number of bets associated with it, depending on its position on the betting layout. For example, there are four splits around number 2 and only three associated with 0. Each number therefore needs a different number of chips for a complete to be played.

It is also possible to bet on complete dozens. The number of chips is as follows:
first dozen - 136 chips
second dozen - 140 chips
third dozen - 120 chips.

Number and the chevals

This is a bet straight up and the associated splits (chevals). It is a five-chip bet. The numbers in the second column from 2 to 32 have four chevals. Numbers 34 and 36 have two chevals. All the other numbers have three chevals. Where there are fewer than four chevals, the extra chip(s) is put on as a straight-up bet. For example, 14 and the chevals comprises the following bets.  Straight up number 14 - one chip; cheval 11/14 - one chip; cheval 13/14 - one chip; cheval 14/15- one chip and cheval 14/17 - one chip.

Where there are only three chevals, the extra chip is put on the number. Number 7 and the chevals comprises the bets:
straight up - two chips
cheval 4/7 - one chip
cheval 7/8 - one chip
cheval 7/10 - one chip.

Zero
Zero and double zero are numbers, just like 1 to 36. A straight-up chip is paid at 35/1. However, zero and double zero have an effect on the outside bets. Depending on the casino’s rules there is some variation in what happens to the outside bets when zero is spun.
When zero is spun, the outside bets lose half of their stake. If, for example, you had a bet of £10 on red and zero is spun, you will lose £5.
In other casinos, there is the en prison rule. The bets are held for a further spin. If on the next spin, they win, the stake is returned to the player. If they lose, the stake is lost. For example, if you had a bet of £10 on black and zero is spun, you need to wait until the next spin to find out what will happen to your bet. If a black number is spun, your £10 bet will be returned to you. If red is spun, your bet will lose.