Playing cards

The basic maths behind blackjack

Unlike many other games, blackjack is not a game of mere probabilities. It is also not primarily about luck. If you are able to calculate quickly and without errors, you can use these skills very well in blackjack.

It is quite sufficient if you know the basic arithmetic. With this, it is quite possible to increase the probability of winning. In any case, it is clear that mathematics alone is not a guarantee of winning, but it can decide how well or how badly you do at the table. On this link you can try Blackjack for free and train your skills risk-free.

Why the basics of mathematics are so important

First and foremost, blackjack is about adding up the cards. So you have to be able to add up the values of the cards in your head. The decisive number in blackjack is 21. The closer you get to 21, the higher your chance of winning.

However, you must never exceed 21. The cards are immediately turned face up after being dealt. The dealer, on the other hand, has only one up down card and one face down card.

Strictly speaking, Black Jack is the card game that many already know from childhood, it is “17+4”. The player who reaches 21 with his cards is the winner. If the card value is below 21, the one who is closer to 21 with the value wins.

How to count cards quickly and safely

The professionals of blackjack have developed their own science-backed┬ástrategies. They can tell in advance how good or bad the cards in their hand are. That’s why card counting has always been one of the most frequently used blackjack strategies.

Card counting helps to store the cards already dealt in the brain. If you have this ability to remember the cards that were already on the table, you also know at the same time which cards are still in the deck.

So in Black Jack, it’s not just the mathematics of counting the card values in your own hand that counts. Rather, it is important to observe the other cards dealt and remember the values. High cards in the deck increase the chance of winning. Low cards, on the other hand, are usually in favor of the dealer.

A photographic memory is not necessary in blackjack. The point is to remember how the cards are played and how the other players at the table handle high or low cards.

Luck or maths?

The Hi-Low strategy is used by many professionals. Mathematics plays an important role here, because here the cards are divided into two categories. Low cards include the cards from 2 to 6. They are placed in the 1+ category and have only a low value.

High cards include the 10s, jacks, queens, kings and aces. They have a value of -1. With these cards, the value in the hand can be quickly calculated. Neutral are then all other cards, i.e. the 7, the 8 and the 9. They are calculated with the value zero.

This strategy has long been used in card counting. Thanks to this method, it is not necessary to add up all the card values, but here the cards are divided into +1, -1 and zero. This provides a simple overview.

This way, you can follow the basics that the professionals have been using and implementing for a long time. Ultimately, of course, you can decide whether you just calculate in your head or want to use the Hi-Low strategy.

Photograph by Jack Hamilton