Blackjack refers to the game of card dealt from two decks, seven and a half decks to be exact. The player who wins a hand will take off one card from the deck they just won, thus leaving a seven and a half deck. In order to determine the number of decks a casino uses in a blackjack game, we must first understand how the dealer makes his deck.
A dealer begins by dealing each person a single card face down. He then deals seven and a half decks to each player, counting the card that came from the middle (the card left in the deck that became the second card in the deck that became the winning card). In this manner, the dealer is determining which player has the best hand. After this, the dealer will then deal seven and a half decks again, but this time, eliminate one card from each deck. This process continues until the dealer has made seven and a half decks again.
Once the dealer has completed his second round of card deals, he goes back and deals seven and a half decks to the players again. Then, he looks at the remaining deck and counts the card numbers. This process of simply adding together the card numbers is called “clearing”.
Now, the dealer has a list of cards that can and cannot go into the blackjack deck. The dealer can’t add any cards to the deck, while the player is removing them. Once the dealer has these lists, he adds the number of decks he still has to come up with the number of decks needed. Then, if the player requests a new deck, the dealer will have to first check to see if the players request a new deck before making one. If the players request a new deck before the dealer has the list of cards, the dealer must remove two cards from the deck list and then make two new lists of cards and add them to the deck. These new lists will always be shorter than the list of required decks since the dealer will always have to make one new list for the new deck request.
In an ideal world, casino’s would keep a running tally of how many decks they have on hand. However, real life situations may prevent this. For example, it would take too long to count card sizes as they vary from casino to casino. Also, standard card sizes cannot be easily changed in most blackjack games.
Some blackjack games will allow a player to alter their card size. Most casinos don’t allow players to change card sizes when playing blackjack. There are exceptions to this rule such as Texas Holdem. Blackjack tournaments are held by casino’s to allow players to challenge their opponents and increase the possibility of winning large prizes. The tournament rules may state that you can fold or bet out at any time without showing your card.
The number of decks used in blackjack is also important. If a player is playing with unknown numbers, it is better for them to increase the number of decks used. If the hand has already been dealt with, a player should consider how many decks are left. This allows a player to determine the best possible card combination.
The general rule of thumb is to have about twenty-two cards on the table for every 100 hands of blackjack. Of course this depends on the game and how the deck is laid out. Most casinos keep a certain number of decks available for use. This number may change depending on the rules of the specific casino. If the number of card in the deck is too low, the casino may require a minimum number of decks.