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Strategy

Basic strategy charts

The mathematically best play for every hand you can be dealt — adjusted to the rules at your table. Learn it and the house edge drops to around half a percent.

Basic strategy is the set of decisions that loses the least money over the long run, worked out by simulating every combination of your hand against every dealer upcard. It doesn't need memory of earlier cards or a calculator at the table — just the three charts below. Find your hand on the left, the dealer's upcard along the top, and play the cell where they meet.

0.25%Est. house edge with these rules
HHit SStand DDouble, else hit DsDouble, else stand PSplit RhSurrender, else hit
Hover or tap any cell to see the play spelled out. The dealer's upcard runs across the top.

Hard totals

Soft totals

Pairs

Practise at the tableOpen the game with these rules and strategy hints switched on — the book play is outlined on every decision.

Play with hints

Practice drill

Test yourself. You'll be dealt a random starting hand against a dealer upcard; pick the play. The drill follows the rules selected above. On a keyboard, use H S D P R.

Dealer
You
Score0/0
Streak0

How to read the charts

Hard totals are hands without an ace, or where the ace has to count as 1. Soft totals are hands where an ace counts as 11 — ace-7 is soft 18. Pairs applies only to your first two cards; once you've decided not to split, play the hand by its total.

Some cells depend on what's allowed. D means double if you can, otherwise hit — you usually can't double after taking a third card. Ds means double if you can, otherwise stand. The R cells mean surrender if the table offers it; if not, follow the fallback.

The plays that matter most

Insurance and even money

Insurance pays 2 to 1, but in a six-deck shoe the dealer completes a blackjack under an ace only about 31% of the time — you need over 33% to break even. That makes insurance one of the worst bets on the table, with a house edge around 7%. Even money is exactly the same bet with a friendlier name: decline both.

How the rules change the chart

Use the controls above and watch the cells move. When the dealer hits soft 17, you double more aggressively (11 against an ace, soft 19 against a 6) and surrender more (15 and 17 against an ace). Without double after split, splitting small pairs is less attractive, so 4s become a hit and 2s, 3s and 6s split less often. With fewer decks doubling gains value: 9 against a 2 becomes a double, and in single-deck games so do hard 8 against a 5 or 6 and soft 17 against a 2.

The charts here cover the main adjustments. Exact single-deck play has further composition-dependent refinements — for example, some hands play differently depending on which two cards make the total.

Want to know how each rule moves the house edge? See rule variations explained.

Beyond basic strategy

Basic strategy assumes you know nothing about the cards already played. Card counters track the ratio of high to low cards left in the shoe and change both their bets and some plays when it shifts — the Salon's optional Hi-Lo count display (Settings → Preferences) lets you watch that number move. Counting only works with a real shoe and deep penetration; a continuous shuffling machine resets the count every round.