Blackjack Cheat Sheet

Blackjack is a game of strategy that requires good memory and knowledge of probability theory. A blackjack cheat sheet can help you maximise your chances of winning, while minimising how much you lose.

The basic strategy for blackjack is based on precise probability calculations. Using a blackjack strategy chart is the best way to minimize the house edge and increase your chances of winning.

Game rules

Blackjack is a card game that is played against the dealer. It has a high house edge but is susceptible to side bets that can improve the player’s expected value. Side bets are usually countable using a specific counting system, but the dealer’s up card can make it difficult to keep track of the count.

One of the best ways to lower the house edge is by surrendering a hand. This option allows players to forfeit their hand before they draw new cards and return half of their stake. This is not a perfect strategy, but it can reduce the house’s advantage. Surrender is also a good choice when the player’s two cards have a low expected value against the dealer’s up card.


Blackjack (also known as 21 and black jack) is one of the world’s most popular casino games. It is a member of the casino banking game family and descends from the global game of vingt-et-un. There are a number of secondary bets that can significantly increase your payouts and odds of winning at blackjack. These include doubling down, splitting pairs, and insurance. Statistically, it is generally best not to purchase insurance. Nevertheless, it is a useful tool for some players.


Insurance is a side bet available to blackjack players when the dealer has an ace. This bet pays out 2:1 and is often recommended by dealers. However, it should be avoided by blackjack players. This bet increases the house edge and will lose you money over time.

Although the insurance bet may look tempting, it is not worth making. It is important to understand the odds of hitting a blackjack before you make this bet. In addition, this type of bet is a distraction from the game and will not improve your chances of winning over time. Instead, focus on your own hand and follow basic strategy to reduce the house edge. Insurance is one of the most contested sides bets in blackjack. While it can be an attractive option, there are several risks involved in taking it.

Tie hands

The objective of blackjack is to beat the dealer. This is accomplished by playing your cards in a way that reduces the dealer’s chances of getting over 21. The best method for this is to use basic strategy, which is the mathematically optimal way to play a hand based on your cards and the dealer’s up-card.

You can also make an insurance bet, which is a side wager that the dealer has a ten-value card in the hole. This bet pays off at one-and-a-half to one odds.

Some games allow you to double after splitting aces, but most do not. Doubling after splitting aces increases the house edge by about 0.12%. Some games allow you to resplit aces, but this decreases the house edge by about 0.3%.


Blackjack is a game of strategy that requires skill to master. While it is a losing bet overall, players can reduce the house edge through proper basic strategy and the use of surrender rules. This option allows players to fold their hand for half of the original wager once they see the dealer’s hole card. However, it’s important to understand the difference between blackjack surrender and insurance, as they are not the same thing.

Optimal surrendering is based on probability, and it can dramatically cut the house advantage over skilled players. It is also influenced by the dealer’s house rules and how many decks are in play. Using this rule is recommended only when the player’s odds of winning are low. There are two types of surrender rules: early and late.