What Is Basic Strategy?
Blackjack basic strategy is a set of mathematically derived decisions that tell you the optimal play for every possible hand combination against every dealer upcard. It was developed through computer simulations analyzing millions of hands and represents the best possible play under standard rules — with no card counting required.
Playing perfect basic strategy can reduce the house edge to as low as 0.4%–0.5% in favorable rule sets, making blackjack one of the best-value games in any casino.
Core Decision Categories
Every blackjack decision falls into one of five actions:
- Hit: Take another card.
- Stand: Keep your current hand.
- Double Down: Double your bet and take exactly one more card.
- Split: Divide a pair into two separate hands, each with its own bet.
- Surrender: Fold your hand for half your bet back (where available).
Hard Hand Strategy
A "hard" hand contains no Ace, or an Ace counted as 1.
| Your Total | Dealer Shows 2–6 | Dealer Shows 7–Ace |
|---|---|---|
| 8 or less | Hit | Hit |
| 9 | Double (vs 3–6), else Hit | Hit |
| 10–11 | Double Down | Double (if total > dealer), else Hit |
| 12–16 | Stand | Hit |
| 17+ | Stand | Stand |
Soft Hand Strategy
A "soft" hand contains an Ace counted as 11. The Ace gives you flexibility — you can't bust with one hit.
- Soft 13–15 (A-2 to A-4): Double vs dealer 4–6; otherwise Hit.
- Soft 16–17 (A-5 to A-6): Double vs dealer 3–6; otherwise Hit.
- Soft 18 (A-7): Double vs 3–6; Stand vs 2, 7, 8; Hit vs 9, 10, Ace.
- Soft 19–20 (A-8, A-9): Always Stand.
Pair Splitting Strategy
Splitting correctly is one of the biggest strategy advantages available:
- Always split: Aces and 8s.
- Never split: 10s (you already have 20) and 5s (treat as 10, double down).
- Split 2s, 3s, 7s: vs dealer 2–7.
- Split 4s: only vs dealer 5–6.
- Split 6s: vs dealer 2–6.
- Split 9s: vs dealer 2–9, except 7 (stand on 18 vs 7).
Key Rules That Affect Strategy
Basic strategy varies slightly depending on table rules. Watch for:
- Number of decks: Single-deck games favor the player more than 6-deck shoes.
- Dealer hits or stands on soft 17: Stands on soft 17 reduces the house edge.
- Double After Split (DAS) allowed: Increases player edge.
- Surrender available: Late surrender reduces edge by roughly 0.07%.
Practice Tips
- Use a printed or digital strategy chart at first — most casinos allow them.
- Practice with free online blackjack simulators before playing for real money.
- Commit the "always" and "never" rules to memory first, then learn the edge cases.
- Never deviate based on gut feeling or streaks — the math doesn't change.
Basic strategy won't guarantee wins every session, but it ensures you're always making the mathematically sound decision. Over time, that discipline is what separates losing players from break-even ones.