To bet a dozen, choose the pocket P 12 for the first 12 numbers, M 12 for the 12 middle numbers, and D 12 for the last 12 numbers. If you want to bet on a column, place your bets on the empty pocket under the 3 columns. The first six bets are placed on the pockets numbered 0 to 36 on the game table. After the dealer has cleared off the table and begun a new round, place your chip (or chips) on the table, next to their corresponding number slot(s). Place your bets on their corresponding spots. On a roulette table with an additional 00, the casino has an advantage of 5.26%. On a roulette table with a single 0, the casino has an advantage of 2.7%.

At American tables, the '00' slot increases the casino's advantage even more.

If a player loses, they can collect half their bet in the La Partage rule, or leave half their bet on the table for the next spin with the En Prison rule.

However, players cannot leave their bet on the table for another spin with the La Partage rule.

In the En Prison and La Partage rules, players only lose half of their bet.

The 'La Partage' and 'En Prison' rules apply to outside “even money” bets (bets that offer a 1-1 payout like odd or even, black or red, and low or high) they also apply when the ball lands in the 0 slot.

Some French tables will employ rules that generally help out the players.

However, there are some variants that change how the favor lies: X Research source There are theories as to how you can improve your odds, but they don't work. The house’s advantage comes from its additional number 0 (which offers the house an additional 2.7% chance of winning, compared to the players). Know that at every roulette table (and at every game in the casino itself), the “house” (the casino) always has an edge. Recognize the “house edge” and how it affects your odds.

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