Blackjack is a card game that pits the dealer against the player. If the player’s hand is closer to 21 than the dealer’s, he or she wins and is paid an amount equal to his original wager. If the player’s hand busts, he loses. Ties are a push and the player’s bet remains on the table.

While many players believe that luck is the only factor determining whether they win or lose, mathematically sound players can gain an advantage over the house through careful application of basic strategy. Using the card counting technique, a player can increase his or her chances of winning by making calculated decisions when to hit, stand, double down, or split. This method of playing the game increases the overall chance of winning a hand by reducing the house’s edge and allowing the player to play longer sessions.

A player can use a blackjack strategy chart to determine the best action for a particular hand and the dealer’s up card. These charts are available free of charge and most casinos allow players to use them at the table. They are not foolproof, however, as different rules and conditions can alter a player’s strategy.

When the first two cards in a hand add up to 11 and the dealer’s card is a 2 or 3, it is usually recommended that the player double down. By doubling down, the player receives one additional card, which can improve their hand value. However, the fact that aces can count as either 1 or 11 makes this decision even more complex.

Another option for improving a strong starting hand is to split a pair of 8s or aces, regardless of what the dealer’s up card is. This is because these hands can be improved by drawing more cards in the long run and will increase the chances of beating a dealer’s 12.

Some players may find it difficult to make good decisions when faced with a strong starting hand, especially if they are worried about busting. This is where blackjack strategy calculators can be useful. These calculators provide the optimal strategy for a given situation, including when to double down and when to split. They can also warn players when they are at risk of busting.

Effective bankroll management is essential for maximizing your chances of success in blackjack. It is important to set a budget for your blackjack sessions and predetermine the amount of money you are willing to risk per hand. It is generally recommended to not bet more than one to two percent of your total bankroll on a single hand.

The best way to become an expert in blackjack is to practice and study the game. By memorizing the basic strategy, you will be able to improve your odds of winning every time you sit down at the table. You should try to understand the principles of probability theory and card counting, which will help you maximize your profits.