European 6-Deck S17 DAS Double 9–11 Split Once basic strategy chart

With this chart the house edge is 0.665%. Rules: 6 decks, dealer stands on soft 17, double after split, no surrender, blackjack pays 3:2, double on 9–11 only, split once, no hole card. Perfect play for the exact cards (impossible to memorize) would bring it to 0.661%. That makes it number 20 of the 26 games on this site, ranked from the best for the player.

Practice these rules House edge with these rules

Dealer’s up card

Hard totals
Your hand	2	3	4	5	6	7	8	9	10	A
5–8	H	H	H	H	H	H	H	H	H	H
9	H	D	D	D	D	H	H	H	H	H
10	D	D	D	D	D	D	D	D	H	H
11	D	D	D	D	D	D	D	D	H	H
12	H	H	S	S	S	H	H	H	H	H
13	S	S	S	S	S	H	H	H	H	H
14	S	S	S	S	S	H	H	H	H	H
15	S	S	S	S	S	H	H	H	H	H
16	S	S	S	S	S	H	H	H	H	H
17+	S	S	S	S	S	S	S	S	S	S

Soft totals
Your hand	2	3	4	5	6	7	8	9	10	A
A,2	H	H	H	H	H	H	H	H	H	H
A,3	H	H	H	H	H	H	H	H	H	H
A,4	H	H	H	H	H	H	H	H	H	H
A,5	H	H	H	H	H	H	H	H	H	H
A,6	H	H	H	H	H	H	H	H	H	H
A,7	S	S	S	S	S	S	S	H	H	H
A,8	S	S	S	S	S	S	S	S	S	S
A,9	S	S	S	S	S	S	S	S	S	S

Pairs
Your hand	2	3	4	5	6	7	8	9	10	A
2,2	P	P	P	P	P	P	H	H	H	H
3,3	P	P	P	P	P	P	H	H	H	H
4,4	H	H	H	P	P	H	H	H	H	H
5,5	D	D	D	D	D	D	D	D	H	H
6,6	P	P	P	P	P	H	H	H	H	H
7,7	P	P	P	P	P	P	H	H	H	H
8,8	P	P	P	P	P	P	P	P	H	H
9,9	P	P	P	P	P	S	P	P	S	S
10,10	S	S	S	S	S	S	S	S	S	S
A,A	P	P	P	P	P	P	P	P	P	H

HHit
SStand
DDouble, else hit
DsDouble, else stand
PSplit
RSurrender, else hit
RsSurrender, else stand
RpSurrender, else split

How to read it

Find your hand on the left and the dealer’s up card on top. “Else” is the play when the first one isn’t allowed, for example after you have taken a card.

What changes from European 6-Deck S17 DAS

The closest common game is European no hole card, 6-deck, dealer stands on soft 17, double after split, at 0.518%. These rules raise the house edge by 0.147%.

Rule here	Change in house edge
Double on 9–11 only	+0.096%
Split once	+0.051%
Together	+0.147%

18 chart cells change

Soft 13 (A,2) against 5: Hit instead of double, else hitDouble on 9–11 only
Soft 13 (A,2) against 6: Hit instead of double, else hitDouble on 9–11 only
Soft 14 (A,3) against 5: Hit instead of double, else hitDouble on 9–11 only
Soft 14 (A,3) against 6: Hit instead of double, else hitDouble on 9–11 only
Soft 15 (A,4) against 4: Hit instead of double, else hitDouble on 9–11 only
Soft 15 (A,4) against 5: Hit instead of double, else hitDouble on 9–11 only
Soft 15 (A,4) against 6: Hit instead of double, else hitDouble on 9–11 only
Soft 16 (A,5) against 4: Hit instead of double, else hitDouble on 9–11 only
Soft 16 (A,5) against 5: Hit instead of double, else hitDouble on 9–11 only
Soft 16 (A,5) against 6: Hit instead of double, else hitDouble on 9–11 only
Soft 17 (A,6) against 3: Hit instead of double, else hitDouble on 9–11 only
Soft 17 (A,6) against 4: Hit instead of double, else hitDouble on 9–11 only
Soft 17 (A,6) against 5: Hit instead of double, else hitDouble on 9–11 only
Soft 17 (A,6) against 6: Hit instead of double, else hitDouble on 9–11 only
Soft 18 (A,7) against 3: Stand instead of double, else standDouble on 9–11 only
Soft 18 (A,7) against 4: Stand instead of double, else standDouble on 9–11 only
Soft 18 (A,7) against 5: Stand instead of double, else standDouble on 9–11 only
Soft 18 (A,7) against 6: Stand instead of double, else standDouble on 9–11 only

Closest tables, two rules away

No table here is a single rule away from this one; these change two rules. The last column is what the two do to the house edge together.

Rule there	House edge	Change
Double on any two cards · Split to 4 handsEuropean no hole card, 6-deck, dealer stands on soft 17, double after split	0.518%	-0.147%

All strategy charts

How these numbers were computed

Our blackjack engine plays out every hand against the exact cards left in the shoe, with the dealer’s exact chances of each final total, and picks the best play for each total over all the hands that reach it. Only splits use a small approximation. Its house edges agree with published combinatorial results to within 0.005% of the bet. Figures assume a fresh shoe every round, like a continuous shuffler; a cut card adds a little to the house edge.

Your hand	2	3	4	5	6	7	8	9	10	A
A,2	H	H	H	H	H	H	H	H	H	H
A,3	H	H	H	H	H	H	H	H	H	H
A,4	H	H	H	H	H	H	H	H	H	H
A,5	H	H	H	H	H	H	H	H	H	H
A,6	H	H	H	H	H	H	H	H	H	H
A,7	S	S	S	S	S	S	S	H	H	H
A,8	S	S	S	S	S	S	S	S	S	S
A,9	S	S	S	S	S	S	S	S	S	S

Your hand	2	3	4	5	6	7	8	9	10	A
A,2	H	H	H	H	H	H	H	H	H	H
A,3	H	H	H	H	H	H	H	H	H	H
A,4	H	H	H	H	H	H	H	H	H	H
A,5	H	H	H	H	H	H	H	H	H	H
A,6	H	H	H	H	H	H	H	H	H	H
A,7	S	S	S	S	S	S	S	H	H	H
A,8	S	S	S	S	S	S	S	S	S	S
A,9	S	S	S	S	S	S	S	S	S	S

Your hand	2	3	4	5	6	7	8	9	10	A
A,2	H	H	H	H	H	H	H	H	H	H
A,3	H	H	H	H	H	H	H	H	H	H
A,4	H	H	H	H	H	H	H	H	H	H
A,5	H	H	H	H	H	H	H	H	H	H
A,6	H	H	H	H	H	H	H	H	H	H
A,7	S	S	S	S	S	S	S	H	H	H
A,8	S	S	S	S	S	S	S	S	S	S
A,9	S	S	S	S	S	S	S	S	S	S