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Blackjack Basic Strategy Chart

Use this blackjack basic strategy chart to find the mathematically preferred move for hard totals, soft hands and pairs. Learn the blackjack dealer rules behind each decision, understand blackjack expected value, and then practise the chart through blackjack free play with virtual chips.

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Blackjack guide

What is blackjack basic strategy?

Blackjack basic strategy is a decision system built from blackjack mathematics. For every combination of your hand and the dealer’s visible card, it identifies the action with the strongest long-term expected value.

The chart does not predict the next card and it cannot guarantee a winning session. Instead, it prevents common decision errors. A player following a suitable chart will generally lose less over a very large number of hands than a player making choices by instinct.

Hard totalA hand with no ace counted as 11, such as 10 + 6.
Soft totalA hand containing an ace counted as 11, such as A + 6.
PairTwo cards of the same value that may be split into separate hands.
Dealer upcardThe dealer’s visible card, shown across the top of each table.

Read your hand down the left side, find the dealer’s upcard across the top, and use the letter where the row and column meet.

Blackjack basic strategy chart

Hit, stand, double or split

H Hit S Stand D Double; otherwise hit P Split
Hard totals — no usable ace
Your hand2345678910A
17+S
16SSSSSHHHHH
15SSSSSHHHHH
14SSSSSHHHHH
13SSSSSHHHHH
12HHSSSHHHHH
11DDDDDDDDDH
10DDDDDDDDHH
9HDDDDHHHHH
8 or lessH
Soft totals — ace counted as 11
Your hand2345678910A
A,9S
A,8SSSSDSSSSS
A,7SDDDDSSHHH
A,6HDDDDHHHHH
A,5HHDDDHHHHH
A,4HHDDDHHHHH
A,3HHHDDHHHHH
A,2HHHDDHHHHH
Pairs — split decisions
Your pair2345678910A
A,AP
10,10S
9,9PPPPPSPPSS
8,8P
7,7PPPPPPHHHH
6,6PPPPPHHHHH
5,5DDDDDDDDHH
4,4HHHPPHHHHH
3,3PPPPPPHHHH
2,2PPPPPPHHHH

Important: D means double if the rules and your balance allow it; otherwise hit. Exact strategy can change when the table uses different blackjack dealer rules, surrender, unusual payouts or special rules.

How to read the chart

A simple four-step blackjack guide

  1. Calculate your total. Decide whether the hand is hard, soft or a pair.
  2. Find the dealer’s upcard. Only the visible dealer card is used for the decision.
  3. Read the matching square. H means hit, S means stand, D means double, and P means split.
  4. Use the action consistently. Do not change a mathematically sound decision because the previous hand won or lost.
Example: You hold 10 + 6 and the dealer shows 6. Find hard 16 on the left and dealer 6 across the top. The chart says S — stand. The dealer has a meaningful chance of busting, while hitting 16 carries a high bust risk.

Blackjack dealer rules

Why the dealer’s rules change the chart

The dealer does not make strategic choices. The house follows fixed blackjack dealer rules: draw cards until a required total is reached, then stop. The most important distinction is soft 17.

S17 — dealer stands on soft 17Generally more favorable to the player. This is the assumption used in the chart above.
H17 — dealer hits soft 17Usually gives the house a slightly stronger position and changes a few close strategy decisions.
Blackjack pays 3:2A natural blackjack returns more than an ordinary even-money win.
Double after splitThis makes some pair splits more valuable, especially against weak dealer cards.

The number of decks, blackjack payout, resplitting rules, surrender and special variants also affect the blackjack odds. That is why a strategy chart should always state its assumptions.

Blackjack expected value

Why the “right” move can still lose

Blackjack expected value measures the average result of a decision if the same situation could be repeated a very large number of times. A move can have the best expected value and still lose the current hand.

EV = Σ(p × result)

Multiply every possible result by its probability, then add the values together. Basic strategy chooses the available action with the highest expected value — or the smallest expected loss.

For example, standing on a stiff hand against a weak dealer card may feel passive. The chart recommends it because allowing the dealer to draw and potentially bust can have a better long-run outcome than risking an immediate player bust.

Expected value is not a promise. It describes the average over repeated decisions, not what must happen on one hand or during one session.

Blackjack mathematics

How probabilities shape basic strategy

The core blackjack mathematics comes from the possible cards remaining, the rules for both player and dealer, and the payout attached to each outcome. The strategy chart compresses a large probability calculation into one easy instruction.

Bust probabilityA hard 16 can bust on many common draw cards, while a soft hand can often absorb one high card because the ace changes from 11 to 1.
Dealer weaknessDealer 4, 5 and 6 are vulnerable because the dealer must keep drawing even when the next card may cause a bust.
Doubling leverageDouble when one extra card has a favorable enough distribution to justify increasing the stake.
Splitting valueSplit when two new starting hands are worth more than keeping the original combined total.

Blackjack odds

House edge, variance and short-term results

Blackjack odds are unusual because player choices affect the expected return. Poor decisions can increase the house advantage, while accurate basic strategy can reduce avoidable losses substantially.

Under common favorable rules, basic-strategy blackjack is often associated with a house edge around half a percent, but there is no universal number. Deck count, soft-17 rules, payouts and special rules all matter. Your simulator’s Five-Card Charlie variation is player-friendly, so its exact figures differ from standard blackjack.

Variance matters: Even with perfect decisions, a player can experience long winning or losing streaks. Basic strategy improves the quality of each decision; it does not remove randomness.

Common mistakes

Decisions that weaken your blackjack play

Standing on every 12–16The dealer upcard matters. A hard 16 against dealer 10 is not played like hard 16 against dealer 6.
Never splittingAces and eights are normally split because the two new hands have more potential than the original hand.
Splitting tensA total of 20 is already extremely strong. Splitting it usually sacrifices value.
Using previous hands as evidenceRecent wins and losses do not change the correct mathematical action for the current hand.
Ignoring table rulesA chart for S17 and 3:2 blackjack should not be assumed correct for every variation.
Treating insurance as protectionInsurance is a separate side bet and is usually unfavorable without additional card-composition information.

Blackjack free play

Practise the chart without real money

The easiest way to remember a blackjack basic strategy chart is to apply it repeatedly. Our free Blackjack Simulator lets you practise hit, stand, double and split decisions with virtual chips only.

There is no signup, deposit or withdrawal. Turn on the optional strategy helper to compare your choice with the recommended action, then return to this blackjack guide whenever you need to review a difficult hand.

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Frequently asked questions

Blackjack basic strategy FAQ

What is a blackjack basic strategy chart?

It is a table showing the mathematically preferred action for every common player hand against each possible dealer upcard. It converts blackjack mathematics into simple hit, stand, double and split instructions.

Does blackjack basic strategy guarantee a win?

No. It improves decision quality and lowers avoidable errors, but card outcomes remain random. You can make the correct decision and still lose the hand.

Should I always split aces and eights?

Under the common rules used by this chart, yes. Two aces are awkward as a total of 12, and a pair of eights forms a weak hard 16. Splitting creates two more promising starting hands.

Why should I stand on 16 against a dealer 6?

The dealer must draw and has a meaningful chance of busting. Hitting hard 16 also carries a high immediate bust risk, so standing has the better expected value under these rules.

Why does the chart change with blackjack dealer rules?

Dealer behavior changes the probability of each final dealer total. Hitting soft 17, for example, generally improves the dealer’s results and alters some close player decisions.

Can I use the chart during blackjack free play?

Yes. Keep the chart open while using the free simulator, or enable its strategy helper to see recommendations directly during each hand.

Turn the chart into real playing habits.

Practise every decision in the free Blackjack Simulator using virtual chips only.

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