Double-Deck Blackjack Basic Strategy (S17)

Dealer stands on all 17s · No DAS · Dealer peeks (US rules)

This is the mathematically optimal basic strategy for double-deck blackjack under these exact table rules, computed by the Blackjack Theorem engine over millions of simulated rounds. Find your hand on the left and the dealer's upcard along the top.

Hard totals
Hard2345678910A
5HHHHHHHHHH
6HHHHHHHHHH
7HHHHHHHHHH
8HHHHHHHHHH
9HDhDhDhDhHHHHH
10DhDhDhDhDhDhDhDhHH
11DhDhDhDhDhDhDhDhDhH
12HHSSSHHHHH
13SSSSSHHHHH
14SSSSSHHHHH
15SSSSSHHHHH
16SSSSSHHHSH
17SSSSSSSSSS
18SSSSSSSSSS
19SSSSSSSSSS
20SSSSSSSSSS
Soft hands
Soft2345678910A
13HHHHDhHHHHH
14HHHDhDhHHHHH
15HHHDhDhHHHHH
16HHDhDhDhHHHHH
17HDhDhDhDhHHHHH
18SDsDsDsDsSSHHH
19SSSSSSSSSS
20SSSSSSSSSS
21SSSSSSSSSS
Pairs
Pair2345678910A
A,APPPPPPPPPP
2,2HHPPPPHHHH
3,3HHPPPPHHHH
4,4HHHHHHHHHH
5,5DDDDDDDDHH
6,6HPPPPHHHHH
7,7PPPPPPHHHH
8,8PPPPPPPPPP
9,9PPPPPSPPSS
10,10SSSSSSSSSS
Want to see how these rules play out over the long run?
Run this table in the free simulator →

How these rules shape the chart

Frequently asked questions

What is the best basic strategy for double-deck blackjack where the dealer stands on soft 17?

Use the chart above: find your hand on the left, the dealer's upcard across the top, and play the letter shown (H = hit, S = stand, D = double, P = split, R = surrender). It is computed for exactly 2 decks, stands on soft 17, no DAS.

Does hitting or standing on soft 17 change the chart?

Yes. When the dealer stands on soft 17, the correct plays differ on several hands versus the other rule. Always match the chart to the exact table you are playing.

Is this basic strategy chart free?

Yes. You can also run the full double-deck table in the free Blackjack Theorem simulator to see long-run results and bankroll risk for these exact rules.

Other rule sets