This game is popular at the famous casino in Monte Carlo. Trente et Quarante (which means 30 and 40 in French) is also played in Nice, on the French Riviera.
Number of Players. Any number of people can play, though more than 20 participants at the table can get somewhat cumbersome. Usually, a casino will open up another table when there are more than 20 players.
The Pack. Six packs of the standard 52-card pack are used. These are shuffled together.
The Play. The croupier (dealer) always deals. Any one of the players cuts the cards after the croupier has prepared them, and then the croupier places the cards in a shoe (dealing box). Before the deal begins, a player may bet on “rouge” (red), “noir” (black), “couleur” (color) or “inverse” (reverse).
Aces count 1, face cards count 10, and all other cards are equal to their pip value. Once the bets have been made, the croupier lays out a row of cards, announcing the cumulative total as each card is dealt, until the total hits 31 or more. This row of cards represents “noir.” Below the first row, a second row is then dealt in the same way, and represents “rouge.”
Settling. A bet on noir or rouge wins if the row of that designation counts nearer to 31. A bet on “couleur” wins if the first card dealt in a rouge or noir row is of the color designating that row. For example, a diamond is dealt first for the rouge row. If this first card is of the alternative color, the “inverse” bet wins.
When both rows total the same number, it is a “refait” or stand-off, and all bets are called off. However, when the same number for each row is 31, the house takes half of all the bets that have been made; this represents the house advantage, which is only a little more than one per cent because a refait of 31 occurs only about once in 40 coups (deals).