Nevertheless, we will begin with consideration of a very simple model, saying that cards of different advantages leave a pack in regular intervals. Differently, we assume that the probability of a card emergence of the certain rank (we will say an ace or the eight) is equal 1/13, tens - 4/13. The hypothesis of professional blackjack which we have accepted reflects that simple case when players do not make special calculations and operate only according to a common sense.
They believe that "skews" meet seldom. On the other hand, it is possible to imagine the infinite pack consisting of an unlimited number of 52-card packs, or the usual "big pack", where all cards participate in the current distribution. They are constantly mixing up and reshuffling. In such situations, cards calculation would be senseless, and our hypothesis would become an unbiased fact.
However, it is not too far and unreal. In due time, a great number of counters appeared in casinos. They have put an existence of blackjack under threat, but an antidote has been found rather quickly. The croupiers began to exclude the third part and even half of "the big pack" from the game with the help of a special card (cutting card), and efficiency of cards calculation has essentially gone down. In addition, mechanisms which allow a dealer to mix at any moment appeared in many European casinos. They allowed the croupier to mix the won back cards with the part that had stayed in a game of a pack. Cards were mixed up in the casual order and that actually meant a reshuffle. As the cards which leave game are constantly coming back in a pack, shuffle becomes potentially infinite.
Now we will consider a strategy of the game (spanish 21 strategy) which within the framework of a hypothesis about uniformity allows the player to operate optimum. Nevertheless, as the strategy works in a view of the specified concept, it is called not optimum, but base. Really, the counters trying to estimate the current situation at the table will find a perfect starting point in the spanish 21 strategy. We will return to the question of cards calculation and base strategy updating.
Set of additional cards.
Thus, you see two initial cards and an initial card of the dealer. Sooner or later he will start to type the card combination and will stop having received from 17 up to 21 points or having run on surplus. Probabilities of various outcomes depending on a card of the dealer is shown on tables. What will you do then? Here we will help you to learn the strategies and to choose the best variant for your game. Stay with us! Knowledge and game are waiting for you.