How to Count Cards and Double After Splitting in Blackjack


If you are looking to increase your edge at the blackjack table, you should learn how to count cards. This strategy is effective with any blackjack game, whether you play with two decks or fewer. A common rule is to get a hand of seventeen or higher before standing. You can also learn how to buy insurance and double after splitting. However, these tactics are not applicable to every blackjack game. Read on to discover the most effective blackjack strategies. Here are some tips and tricks to increase your edge.

Buy insurance

In blackjack, the decision to buy insurance is a risky one. It can lose you your original bet. You must be prepared to take a loss and learn how to bet more prudently. If you don’t know how to count cards or how to calculate odds, you might want to avoid buying insurance bets altogether. In addition, this bet cannot compensate for losses over the long term. Let’s look at some examples to make your decision easier.

Doubling after splitting

In Blackjack, the strategy of doubling after a split depends on a number of factors, such as how much the player can risk in the first place by splitting an ace, the dealer hitting soft 17 or standing on soft 17. If the player doubles after splitting an ace, he is likely to win more than he loses. If not, he can take a loss of at least 20 cents.


While most blackjack games can be played for fun, there are a few key differences between Blackjack Surrender and its cousin, traditional blackjack. Blackjack Surrender uses six regular decks of cards, and the dealer will deal each player two cards and himself one. This game has a similar set of rules, except that the dealer will not deal any side bets. In this game, you can double your bets only once during a hand.

Rules of the game

Once you’ve read the Rules of Blackjack, you’re ready to play. Depending on your hand, you can hit or stand, which means you ask for more cards from the dealer. You can hit as many times as you like, but you can’t go over 21. The game is based on strategy, which includes the basic blackjack rules. There are also some side rules that you may want to know. You can’t bet on the dealer’s blackjack if you have an ace, for example.

Probability of winning

While blackjack has been played for hundreds of years, card counting was not a mainstream practice until the 1960s. The math behind blackjack card counting is based on the mathematical principles of probability. The theory was developed by Edward O. Thorp, a UCLA math professor who became interested in the game after earning his Ph.D. He used an IBM 704 computer to research the probability of winning at blackjack. His research has since been used to increase players’ chances of winning at the casino.