Blackjack Decision Chart: How to Read It and Match Your Game

How to read a blackjack decision chart

A blackjack strategy chart commonly places the player’s hand in rows and the dealer’s upcard in columns. The cell where they meet gives the recommended action. Some charts use separate grids for hard hands, soft hands and pairs; others arrange the information differently.

Start with the chart’s own instructions. A chart can be easy to read and still be unsuitable for your game if it assumes different rules. Once you have checked the rule profile, use this sequence for each decision:

A blackjack hit or stand chart covers only two possible actions. A fuller reference may also include doubling, splitting and surrender, where those options are available. If a chart does not explain an action or its fallback, do not assume what the author intended.

• Check the game’s rules against the chart’s stated assumptions.
• Classify your hand, checking an eligible pair first and otherwise using the soft or hard category.
• Find the dealer’s visible card, often called the upcard.
• Read the action and its stated alternative if the preferred action is not permitted.

Identify pairs, soft hands and hard hands

A soft hand contains an ace currently counted as 11 without taking the total over 21. For example, A–7 is soft 18. Its ace can be counted as 1 if another card would otherwise make the hand exceed 21.

A hard hand has no ace currently counted as 11. A 7–5 is hard 12. A–7–9 is hard 17: the ace must count as 1, because counting it as 11 would put the hand over 21. If you draw to a soft hand, reclassify it and consult the applicable part of the chart again.

An eligible pair can have a separate splitting decision as well as a numerical total. Check that decision before using the hard- or soft-hand row. Pair eligibility depends on the game: Crown Melbourne’s reviewed base rules allow initial cards of identical value to be split, but another game may define eligibility differently.

Decode the action and its fallback

Chart notation varies, so its legend takes precedence over any general explanation. The following abbreviations are common, but check exactly how they are used on the chart you have chosen.

An unavailable action needs an alternative. For example, Ds means double if allowed and otherwise stand on some charts; it does not follow that every unavailable double should become a hit. A split or surrender recommendation can also require a specified fallback.

Rule abbreviations are different from action symbols. S17 means the dealer stands on soft 17, while H17 means the dealer hits soft 17. DAS means doubling after splitting is allowed.

• H: Hit, or take another card.
• S: Stand, or take no further card.
• D: Double if permitted; consult the legend for the alternative.
• Ds: On some charts, double if permitted; otherwise stand.
• P or SP: Split an eligible pair into separate hands.
• R or Sur: Surrender if available and permitted at that point in the hand.

Choose a chart that matches your game

A blackjack basic strategy chart is calculated for a rule profile, not for a country in the abstract. An Australian label, a familiar venue name or a convenient calculator does not establish that the chart matches the table in front of you.

Check the named game and variation against the chart’s assumptions. Table signage and the venue’s published rules are useful starting points; ask the dealer or floor staff to clarify anything that remains uncertain. A calculator can help generate a rule-specific chart, but only if its settings cover the rules and settlement treatment of the game you are playing.

Crown Melbourne’s published version 28.0 base rules, effective from 24 October 2025, illustrate why this matters. They specify four to eight decks, a dealer who stands on hard or soft 17, and doubling on the first two cards—including the first two cards after a split—only on hard 9, 10 or 11.

A chart that recommends doubling a soft hand would therefore contain an action unavailable under those reviewed base rules. This is a dated example, not a claim about every current Crown variation or Australian table. Check the current document and the particular game before using it.

Natural-blackjack payout belongs in the rule profile too: it affects the overall return of the game. Also identify any named variation or side bet. A chart calculated for conventional blackjack should not be assumed to cover a different game or a separate wager.

• Decks: How many decks does the game use, and does the chart use the same number?
• Dealer soft 17: Does the dealer hit or stand on a hand such as A–6?
• Doubling: Which initial hands qualify, and is doubling after a split allowed?
• Splitting: Which pairs qualify, how many hands are allowed, and what restrictions apply to split aces?
• Surrender: Is it offered, when can it be used, and what alternative does the chart specify?
• Dealer blackjack: When is it discovered, and which wagers are lost if it is found after player decisions?
• Payout and variation: What does a winning natural pay, and is the chart designed for the named game?

Check how dealer blackjack is settled

In a no-hole-card procedure, the dealer’s second card is not initially dealt. That description alone does not tell you what happens to additional wagers if the dealer later receives blackjack.

Two otherwise similar no-hole-card games can settle those wagers differently. In one, additional split or double wagers may be protected; in another, they may also be lost. This difference can change the expected return of an action and therefore the recommendation on a matching chart.

Crown Melbourne’s reviewed base rules say that an amount equivalent to the original wager is lost if the dealer achieves blackjack after a double or split. Other settlement treatments exist. Ask for the exact wording, including how busted or previously settled hands are handled, rather than assuming that a shorthand label answers every question.

The Wizard of Odds Australian blackjack overview explains several settlement models, but some of its venue observations are historical. Use it to understand the distinctions, not as proof of a current table’s rules.

Work through three decisions

The following are worked examples, not a complete chart or a statement of Crown Melbourne’s rules. All three come from the Wizard of Odds six-deck no-hole-card analysis listed in the sources.

Its model has the dealer stand on soft 17, no initial dealer hole card and all wagers—including additional split and double wagers—exposed if the dealer gets blackjack. It permits resplitting to four hands except aces and does not allow drawing to split aces. The pair comparison below uses the source’s double-after-split values.

These assumptions matter. The examples support the stated decisions in this model; they do not verify every cell or fallback in a chart for another game.

• 7–5 against dealer 6: Stand.
• A–7 against dealer 6: Double if permitted in the model; stand is the better of its non-double options.
• 8–8 against dealer 6: Split under the model’s stated split rules.

Example 1: Hard 12 against a dealer 6

Your cards are 7–5, so the hand is hard 12. Locate the hard-hand section, find 12, then move to the dealer’s 6. For this exact two-card composition, the cited model gives standing a higher expected return than hitting.

The suggested action is stand. That does not mean the dealer will bust, or that standing will win this hand. It means the model rates standing more favourably than hitting when the specified assumptions apply.

Example 2: Soft 18 against a dealer 6

Your cards are A–7, making soft 18. In the stated model, doubling has a higher expected return than standing or hitting against the dealer’s 6. Of the two non-double options, standing has the higher expected return.

This shows why soft hand blackjack strategy needs its own lookup. It also shows why the fallback matters: if doubling is unavailable, the model’s comparison points to standing rather than an automatic hit.

Under Crown Melbourne’s reviewed base rules, the soft double is not permitted because doubling is restricted to hard 9, 10 or 11. The worked model’s stand comparison is not, by itself, a fully verified strategy for Crown’s different rules.

Example 3: A pair of eights against a dealer 6

With 8–8, check whether splitting is permitted before treating the hand as hard 16. In a matching pair splitting chart, find the 8–8 row and the dealer’s 6.

The cited model’s double-after-split comparison favours splitting over standing or hitting in this situation. Splitting generally requires an additional wager, and the resulting hands are played separately subject to the game’s rules.

If splitting is unavailable, follow the matching chart’s stated alternative. This example is not an instruction to split eights in every game against every upcard: different settlement rules can change the comparison.

Avoid common chart-reading mistakes

A chart is only as useful as the information you put into the lookup. After a draw, check whether an ace still counts as 11; overlooking that change can put you in the wrong section. Likewise, check an eligible pair before using its total.

Do not guess what to do when a double, split or surrender is unavailable. Use a chart that provides the relevant fallback and matches the permitted actions. A total-dependent chart may also omit exceptions that depend on the exact cards making up a total.

Basic strategy and card counting are not the same thing. Basic strategy uses the hand, dealer upcard and specified rules; card counting additionally tracks information about cards already seen and may affect decisions or bets. Neither approach makes an individual session’s result certain.

• Do not use a soft-hand row after the hand has become hard.
• Do not apply a chart for a different dealer-blackjack settlement or named variant.
• Do not treat a recommended action as a prediction of the next card or the hand’s outcome.
• Do not assume a base-game chart also covers a side bet.

Australian context and safer play

Australian online and land-based gambling rules are separate matters. The Australian Communications and Media Authority says the Interactive Gambling Act makes it illegal for providers to offer certain online gambling services to people in Australia, including online casinos. Its guidance identifies online casino-style games such as blackjack.

That is a restriction framed around providers; it should not be read as a claim that every individual player commits an offence. In Victoria, the Victorian Gambling and Casino Control Commission describes a separate approval process for casino table-game rules and changes. Do not assume that one state’s process or one venue’s rules apply throughout Australia.

Set time and money limits before playing, and do not use a chart to chase losses. For free, confidential support, call the National Gambling Helpline on 1800 858 858, available 24 hours a day, seven days a week, or visit Gambling Help Online.

FAQ

Is a decision chart the same as a basic strategy chart?

The terms often describe the same kind of action table, but “decision chart” alone does not establish that its recommendations are mathematically optimal. A basic strategy chart should identify the rules and assumptions used to calculate its actions.

Can I use one chart for every blackjack game?

No. Deck count, dealer soft-17 rules, permitted actions and dealer-blackjack settlement can all matter. A chart for conventional blackjack may also be unsuitable for a named variation or a table that restricts doubling.

What if the chart says to double but I cannot?

Follow the chart’s stated alternative rather than guessing. Some charts use Ds to mean double if allowed and otherwise stand, but notation and fallbacks vary. In the labelled A–7 example above, standing is the better non-double option under that model.

Does no hole card mean I lose every split or double wager to dealer blackjack?

No. No hole card describes the dealing procedure, not the complete settlement rule. Check the game’s exact treatment of additional wagers and ask how busted or already settled hands are handled.

Does an Australian blackjack game need a different chart?

It needs a chart matching its actual rules, whether or not the chart is labelled Australian. The soft-double restriction in Crown Melbourne’s reviewed base rules illustrates why a generic chart may not fit, but that restriction should not be assumed for every Australian table.

Can I consult a printed chart or phone at the table?

Ask the venue before relying on either. Table-conduct and device permissions have not been verified for individual venues, and permission to use one kind of aid should not be assumed to extend to another.

Does a blackjack decision chart guarantee a profit?

No. A chart compares decisions under stated assumptions; it does not control the cards or guarantee the outcome of a hand or session. Even when every decision follows a matching strategy, a player can lose.