How to play blackjack

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Last updated: April 4, 2026

Quick Answer: Blackjack is a card game where players aim to get a hand value as close to 21 as possible without going over, while also beating the dealer's hand. Players are dealt two cards and can choose to 'hit' (take another card) or 'stand' (keep their current hand). The dealer also plays, following specific rules.

Key Facts

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

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:

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:

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.

Sources

  1. Blackjack - WikipediaCC-BY-SA-4.0
  2. Gambling: Know your risks - Mayo Clinicfair-use

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