What Is Blackjack?
Blackjack is a card game played one-on-one against a dealer. Your goal is to get a hand total as close to 21 as possible without going over — exceeding 21 is a "bust" and results in an immediate loss.
It's one of the most popular casino table games in the world. With simple rules and the use of basic strategy, the house edge can be reduced to under 0.5%, making it one of the most player-friendly casino games available.
Card Values
| Card | Value |
|---|---|
| 2–9 | Face value (2–9 points) |
| 10, J, Q, K | 10 points |
| A (Ace) | 1 or 11 (whichever is more favorable) |
When an Ace is counted as 11 without busting, that hand is called a soft hand (e.g., A+6 = Soft 17). If counting it as 11 would cause a bust, it's counted as 1 instead.
Round Structure
1. Place your bet
2. Each player and the dealer receive 2 cards
(Player: both face-up; Dealer: one face-up, one face-down)
3. Players choose their actions
4. Dealer reveals the hidden card and draws per house rules
5. Hands are compared and bets are settled
Player Actions
| Action | Description |
|---|---|
| Hit | Draw one more card |
| Stand | Keep your current total and end your turn |
| Double Down | Double your bet and receive exactly one more card |
| Split | If your first 2 cards are the same rank, split them into two separate hands (place an equal second bet) |
| Surrender | Give up the hand after seeing your first 2 cards and recover half your bet (availability varies by casino) |
Dealer Rules
Unlike players, the dealer follows fixed rules:
- Total 16 or less: Must hit
- Total 17 or more: Must stand
- Soft 17 (A+6): Some casinos require a hit on soft 17 — check the table rules
Outcome Summary
| Situation | Result |
|---|---|
| Player busts (over 21) | Player loses |
| Dealer busts | Player wins |
| Player total > dealer total | Player wins |
| Player total = dealer total | Push — bet returned |
| Blackjack (A + 10-value card on first 2 cards) | Pays 3:2 (typically) |
Basic Strategy
Basic strategy is a chart that tells you the optimal action based on your hand total and the dealer's face-up card. Following it minimizes the house edge as much as possible.
Hard Hands (no Ace, or Ace counted as 1)
| Your Total | Recommended Action |
|---|---|
| 8 or less | Always hit |
| 9 | Double down if dealer shows 3–6; otherwise hit |
| 10–11 | Double down if your total exceeds dealer's card; otherwise hit |
| 12 | Stand if dealer shows 4–6; otherwise hit |
| 13–16 | Stand if dealer shows 2–6; hit if dealer shows 7 or higher |
| 17 or more | Always stand |
Split Guidelines
| Pair | Recommendation |
|---|---|
| A-A | Always split |
| 8-8 | Always split |
| 10-10 | Never split (20 is a strong hand) |
| 5-5 | Never split (treat as 10 for doubling purposes) |
| 9-9 | Split unless dealer shows 7, 10, or A |
Blackjack Odds
- Probability of a natural blackjack (first 2 cards): ~4.8%
- House edge (typical rules): ~0.5% when using basic strategy
- Without basic strategy: House edge can be 2–4%
A Note on Card Counting
Card counting is a technique for tracking the ratio of high-value to low-value cards remaining in the deck to identify favorable situations.
- It is legal (no laws prohibit it)
- Casinos can ban you from their premises (private property rules)
- It requires significant practice and is not recommended for beginners
Start by mastering basic strategy before exploring advanced techniques.
Key Terms Glossary
| Term | Meaning |
|---|---|
| Bust | Hand total exceeds 21 (automatic loss) |
| Push | Tie with the dealer — bet is returned |
| Soft hand | A hand where an Ace is counted as 11 |
| Hard hand | A hand where the Ace is counted as 1, or no Ace is present |
| Natural | A blackjack dealt on the first two cards |
| House edge | The casino's statistical advantage |
| Shoe | Device holding multiple decks of cards for dealing |
Summary
| Learning Step | Focus |
|---|---|
| First | Learn card values (A=1or11, face cards=10) |
| Next | Understand hit, stand, double down, and split |
| Practice | Apply basic strategy based on your total vs. dealer's card |
| Advanced | Handle soft hands and split decisions correctly |
Blackjack takes minutes to learn but rewards careful study of basic strategy. Among casino games, it offers some of the best odds for the player when played correctly.