How to play blackjack
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Last updated: April 4, 2026
Key Facts
- The goal is to have a hand total higher than the dealer's, but not exceeding 21.
- Face cards (King, Queen, Jack) are worth 10 points.
- An Ace can be worth either 1 or 11 points.
- A 'blackjack' is an Ace and a 10-value card, usually the best possible hand.
- Common actions include 'hit', 'stand', 'double down', and 'split'.
Overview
Blackjack, also known as Twenty-One, is one of the most popular casino card games in the world. Its appeal lies in its simple rules, strategic depth, and the relatively low house edge it offers when played correctly. The game is played against the dealer, not other players, and the primary objective is to have a hand total that is closer to 21 than the dealer's hand, without exceeding 21. If your hand exceeds 21, it's a 'bust', and you automatically lose.
The Basics of the Game
Blackjack is played with one or more decks of cards, typically six decks in a casino setting. The ranking of cards is straightforward: numbered cards are worth their face value (2 through 10), face cards (King, Queen, Jack) are all worth 10 points, and the Ace is a special card that can be valued as either 1 or 11, depending on which value is more beneficial to the player's hand without busting.
Card Values
- Numbered Cards (2-10): Worth their face value.
- Face Cards (Jack, Queen, King): Each worth 10 points.
- Ace: Can be worth 1 or 11 points. The player or dealer decides the Ace's value to achieve the best possible hand.
A 'blackjack' is a hand totaling 21 with just two cards – typically an Ace and a 10-value card (10, Jack, Queen, or King). If you achieve a blackjack and the dealer does not, you win immediately, usually at a higher payout (3:2). If both you and the dealer get a blackjack, it's a 'push' (a tie), and your bet is returned.
How to Play a Hand
The game begins with players placing their bets. The dealer then deals two cards to each player, face up. The dealer also receives two cards, one face up (the 'upcard') and one face down (the 'hole card').
Player's Turn
Once the cards are dealt, the player to the dealer's left goes first. You have several options:
- Hit: Take another card from the dealer. You can hit as many times as you like, but if your total exceeds 21, you bust and lose your bet.
- Stand: Take no more cards. Your current hand total is your final hand. This is usually done when you believe your current total is strong enough or too close to 21 to risk hitting.
- Double Down: After receiving your first two cards, you can choose to double your initial bet. If you do, you receive only one more card. This is typically done when your initial two cards total 10 or 11, giving you a good chance of getting a high total.
- Split: If your first two cards are of the same rank (e.g., two 8s, two Aces), you have the option to split them into two separate hands. You must place an additional bet equal to your original bet for the second hand. Each hand is then played independently, with the dealer providing a second card to each.
- Surrender (less common): In some games, you can choose to surrender your hand after the first two cards are dealt, forfeiting half of your bet. This is usually only advisable in very specific, unfavorable situations.
Dealer's Turn
After all players have completed their turns, the dealer reveals their hole card. The dealer must follow a strict set of rules:
- The dealer must hit if their hand total is 16 or less.
- The dealer must stand if their hand total is 17 or more.
- In some casinos, the dealer must also stand on a 'soft 17' (a hand totaling 17 that includes an Ace counted as 11), while in others, they must hit on a soft 17. This rule variation affects the house edge.
Winning and Losing
If the dealer busts (exceeds 21), all players who haven't busted win. If the dealer does not bust, their hand total is compared to each player's hand. Players with a higher total than the dealer (without busting) win. Players with a lower total than the dealer lose. If a player's total matches the dealer's total, it's a push (tie), and the player's bet is returned.
Basic Strategy
While luck plays a role, blackjack involves strategy. Basic strategy is a mathematically derived set of rules that tells you the optimal way to play every possible hand against every possible dealer upcard. Following basic strategy significantly reduces the house edge, making blackjack one of the best games for players in a casino. Key aspects of basic strategy involve knowing when to hit, stand, double down, or split based on your hand and the dealer's upcard. For example, basic strategy suggests always splitting Aces and 8s, hitting on a hard 11 or less, and standing on hard 17 or more.
Variations and Side Bets
Casinos often offer variations of blackjack and side bets to make the game more exciting. Side bets are optional wagers placed on specific outcomes, such as the player getting specific pairs or suited cards. While they can offer large payouts, they typically come with a higher house edge than the main game.
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Sources
- Blackjack - WikipediaCC-BY-SA-4.0
- Gambling: Know your risks - Mayo Clinicfair-use
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