Blackjack rules guide
Blackjack Table Rules Explained: 3:2, S17, H17 and More
Blackjack table rules change the payout, the dealer's behavior, the actions available to the player, and sometimes the correct basic-strategy move. Read the payout first, then soft 17, deck count, double-after-split, surrender, and dealer-check rules.
On this page
Five-second table scan
Read the posted rules in this order.
A table notice can look like fine print, but only a few lines define the game profile. Start with the natural-blackjack payout, then identify the rules that alter dealer behavior and player options.
- 1Changes payout
Blackjack payout
3:2 or 6:5This controls the profit paid for a natural blackjack. It is the fastest rule to compare and the first line to read.
- 2Changes strategy
Dealer soft 17
S17 or H17A dealer A,6 is soft 17. The dealer either stops or draws, and several close basic-strategy decisions change with that rule.
- 3Changes strategy
Deck count
1, 2, 6, or 8 decksDeck count changes card composition and can change close doubles, splits, and surrender decisions.
- 4Changes available actions
Double and split limits
DAS, resplits, split acesCheck whether doubling after a split is allowed, how many times pairs can be split, and whether split aces receive only one card.
- 5Changes edge cases
Surrender and dealer check
Late surrender, peek, or no hole cardThese rules decide whether surrender is available and whether extra split or double wagers can be exposed to a later dealer blackjack.
Interactive rule profile
Build the rules shown on a table.
Choose the posted rules. The result explains whether the Blackjack Blueprint practice tools match and where strategy can change.
Practice compatibility
Supported by Blueprint tools
3:2 / S17 / 6-8 / DAS yes / surrender none / dealer check
Both S17 and H17 are supported. Select the matching dealer rule in the trainer or strategy chart.
The payout, multi-deck assumptions, DAS rule, surrender rule, and dealer-check procedure align with the practice table.
Payout rule
3:2 and 6:5 do not pay the same.
The payout applies to a natural blackjack: an ace plus a ten-value card in the first two cards. It is separate from a normal winning hand, which is commonly paid 1:1. The figures below show profit and total returned on the same $10 educational example.
3:2 blackjack
$15 profit
$10 stake + $15 profit = $25 returned
6:5 blackjack
$12 profit
$10 stake + $12 profit = $22 returned
The difference is $3 of profit each time that $10 example receives a natural blackjack. Always separate the posted blackjack payout from the ordinary 1:1 payout for a regular winning hand.
Dealer rule
S17 means stop. H17 means draw.
A,6 is soft 17 because the ace is currently counted as 11. Under S17 the dealer stands. Under H17 the dealer must take another card. That extra draw changes the dealer's possible outcomes, so a few player decisions also change.
S17: dealer stands
The dealer stops with A,6.
H17: dealer draws
The dealer takes at least one more card.
In the Blueprint chart, examples that change between S17 and H17 include soft 19 against dealer 6, soft 18 against dealer 2, and hard 11 against a dealer ace. Use the rule switch before practicing those close decisions.
Compare S17 and H17 in the chartStrategy impact
Which rules change basic strategy?
Some rules mainly change payout value. Others change the action chart because they alter what the dealer must do or what the player is allowed to do. Match the full rule profile before treating any chart as exact.
3:2 vs 6:5
MeaningProfit paid for a natural blackjack.
EffectUsually changes the value of the game more than the hit/stand chart.
BlueprintPractice blackjack pays 3:2.
S17 vs H17
MeaningDealer stands or draws on a soft total of 17.
EffectChanges a small set of close doubles and hits.
BlueprintBoth profiles are selectable.
Deck count
MeaningNumber of 52-card decks in the shoe.
EffectCan change close pair, double, and surrender decisions.
BlueprintThe action guidance uses a common multi-deck baseline.
DAS
MeaningDouble after split is allowed.
EffectAffects whether several pairs should be split.
BlueprintDAS is assumed.
Surrender
MeaningEnd the opening hand and forfeit part of the stake.
EffectAdds an action in a limited set of difficult hands.
BlueprintSurrender is not included.
Dealer check
MeaningDealer checks a hole card for blackjack before player actions, or does not.
EffectNo-hole-card exposure can affect doubles and splits.
BlueprintOpening dealer blackjack resolves before player actions.
Deck count and the shoe
A single deck, double deck, six-deck shoe, and eight-deck shoe do not have identical card composition. Many beginner moves stay the same, but some close decisions differ. The Blueprint table can simulate 1, 2, 6, or 8 decks for dealing flow, while its strategy guidance uses a common multi-deck baseline.
Peek and no-hole-card games
In a hole-card game, the dealer can check for blackjack before players add money by splitting or doubling. In a no-hole-card game, the dealer's second card may arrive later. Check whether a later dealer blackjack takes all added wagers or only original wagers, because that detail can change close decisions.
Split restrictions
Rules may limit resplitting, prohibit resplitting aces, or deal only one card to each split ace. An ace plus a ten-value card after a split is commonly treated as ordinary 21, not a natural blackjack. DAS matters because the chance to double a strong split hand makes some pair splits more useful.
Surrender
Late surrender is offered only after the dealer checks for blackjack. Early surrender occurs before that check and is a different rule. Surrender is used for a limited set of difficult openings; it is not part of the current Blueprint chart, so a surrender-enabled game needs a matching reference.
Blueprint baseline
Practice with the same assumptions you just read.
The practice table pays 3:2, supports S17 and H17, uses a selectable shoe, assumes double after split, does not use surrender, and resolves an opening dealer blackjack before player decisions. Nothing uses real money.
Clear answers
Blackjack table-rule questions
Which blackjack table rule should I check first?
Check the blackjack payout first. A 3:2 table pays more for a natural blackjack than a 6:5 table. After that, check whether the dealer stands or hits on soft 17, then review deck count, double-after-split, surrender, and dealer-check rules.
What do S17 and H17 mean in blackjack?
S17 means the dealer stands on soft 17. H17 means the dealer hits soft 17. A soft 17 contains an ace counted as 11, such as A,6. The rule changes dealer behavior and a small number of close basic-strategy decisions.
Is 3:2 better than 6:5 for a blackjack payout?
Yes. On a $10 example, 3:2 pays $15 profit while 6:5 pays $12 profit. The original $10 stake is returned in either winning example, so the total returned is $25 at 3:2 and $22 at 6:5.
Does the number of decks change blackjack strategy?
It can. Many common decisions remain the same, but deck count can change some close doubles, pair splits, and surrender decisions. Use a chart that states the same deck and table-rule assumptions as the game being studied.
What does double after split mean?
Double after split, often shortened to DAS, means a player may double a newly created split hand when that hand is otherwise eligible. When DAS is not offered, some borderline pairs should be played without splitting.
Does an ace and a ten after splitting count as blackjack?
Usually it counts as an ordinary 21 rather than a natural blackjack and is paid like a regular winning hand. Rules can vary, so the table notice or game rules should be checked.
Do favorable table rules guarantee a win?
No. Rules and basic strategy affect long-run expected results, not the outcome of one hand or one session. Individual hands remain random, and correct decisions can still lose.
Continue learning
Turn the table rules into better decisions.
New to the game? Learn the full table flow first. Already comfortable with the rules? Continue to basic strategy and use a chart that matches the table profile.
How the rules were checked
The guide compares official published game rules from regulated jurisdictions. Those documents show that payout, S17/H17, deck count, DAS, surrender, split limits, and dealer-check procedures can be configured differently. Local and product-specific rules can still vary, so the displayed game rules remain the final reference.