The most common multi-deck blackjack I’ve seen is six-deck, but the same strategies apply for 4-8 decks. You’ll see that the charts are extremely similar to those for single deck. Again, the first set is for tables where the dealer is required to stand on a soft 17 and the second set is for tables where the dealer is expected to hit on a. There are also slight variations in strategy when you play a 6 deck game versus a single deck game. Rather than teach you 9 different basic strategy charts for each variant of blackjack you will ever see, we decided to run our simulation against the games people will most commonly see and teach one basic strategy that is sufficiently effective.

Introduction

To use the basic strategy, look up your hand along the left vertical edge and the dealer's up card along the top. In both cases an A stands for ace. From top to bottom are the hard totals, soft totals, and splittable hands. There are two charts depending on whether the dealer hits or stands on soft 17.

Blackjack Basic Strategy Chart 2 Deck

Other basic strategy rules.

• Never take insurance or 'even money.'
• If there is no row for splitting (fives and tens), then look up your hand as a hard total (10 or 20).
• If you can't split because of a limit on re-splitting, then look up your hand as a hard total, except aces. In the extremely unlikely event you have a pair of aces you can't re-split and drawing to split aces is allowed, then double against a 6, otherwise hit.

If you play a mixture of six-deck games, some where the dealer hits a soft 17, and some where he stands, and you only wish to memorize one strategy, I would recommend you memorize the one where the dealer stands on soft 17. The cost in errors due to playing the wrong strategy is 2.3 times higher playing a stand on soft 17 game, with the hit on 17 strategy, than vise versa.

Basic Strategy in Text

For the benefit of my blind readers, here is the above strategy in text form, when the dealer stands on soft 17 and surrender is allowed. To use the strategy, start at the top, and follow the first rule that applies.

Surrender

• Surrender hard 16 (but not a pair of 8s) vs. dealer 9, 10, or A, and hard 15 vs. dealer 10.

Split

• Always split aces and 8s.
• Never split 5s and 10s.
• Split 2s and 3s against a dealer 4-7, and against a 2 or 3 if DAS is allowed.
• Split 4s only if DAS is allowed and the dealer shows a 5 or 6.
• Split 6s against a dealer 3-6, and against a 2 if DAS is allowed.
• Split 7s against a dealer 2-7.
• Split 9s against a dealer 2-6 or 8-9.

Multi Deck Blackjack Strategy Chart

Double

• Double hard 9 vs. dealer 3-6.
• Double hard 10 except against a dealer 10 or A.
• Double hard 11 except against a dealer A.
• Double soft 13 or 14 vs. dealer 5-6.
• Double soft 15 or 16 vs. dealer 4-6.
• Double soft 17 or 18 vs. dealer 3-6.

Hit or Stand

Blackjack Strategy Chart 6 Decks

• Always hit hard 11 or less.
• Stand on hard 12 against a dealer 4-6, otherwise hit.
• Stand on hard 13-16 against a dealer 2-6, otherwise hit.
• Always stand on hard 17 or more.
• Always hit soft 17 or less.
• Stand on soft 18 except hit against a dealer 9, 10, or A.
• Always stand on soft 19 or more.

Blackjack Basic Strategy Chart 6 Decks

As I've said many times, the above strategy will be fine under any set of rules. However, for you perfectionists out there, here are the modifications to make if the dealer hits a soft 17.

• Surrender 15, a pair of 8s, and 17 vs. dealer A.
• Double 11 vs. dealer A.
• Double soft 18 vs. dealer 2.
• Double soft 19 vs. dealer 6.

Blackjack Strategy Card 6 Deck

My thanks to Kelly for putting together the above text strategy.

Written by:Michael Shackleford