Blackjack is a very popular card game in casinos. It appeared in the late eighteenth century under the name « 21 ». This game is basically inspired by two decks of cards: the railway and the French farm. He was at the time played in Paris casinos.

A blackjack is composed of an Ace and a « log » (card having the value 10, so 10, J, Q or K). However, if the player reaches point 21 in 3 or more cards we count point 21 and not Blackjack. At the beginning of the game the dealer distributes a face-up card to each player and draws a face-up card also for him. He then draws for each a second card face up and draws a second card face down for him in American Blackjack. In France, the dealer draws his second card after the players’ turn. Then he asks the first player of the table (player to his left) the option he wants to choose. If the player wants a card, he has to announce it by saying « Card! « .
The player can request as many cards as he wants to approach the value without exceeding it. If after the draw of a card he has passed 21, he loses his bet and the dealer passes to the next player.

If he decides to stop, saying « I stay, » the dealer also passes to the next player. The dealer repeats this operation until all players are served. Then he plays for him according to a simple and codified rule: « The bank draws 16, stays at 17 ». Thus, the dealer draws cards until reaching a number between 17 and 21 that is called a point. If he is over 21, all the remaining players win but if he makes his point, only win those having a point higher than his (without having jumped). In this situation, the player wins the equivalent of his stake. In case of a tie, the player keeps his bet but does not stop anything more. Note that blackjack (a log and an ace in two cards) is stronger than 21 made by firing more than two cards: If a player is blackjack and the banker is 21 in 3 or more cards, the player is blackjack and wins one and a half times. The banker wins against all players with 20 or less.