Recognising a hard total
A hand is hard when it contains no ace, or every ace must count as 1 to avoid busting. 10+6 is hard 16. A+5+10 is also hard 16 because the ace can no longer count as 11. The available room before 21—not the number of cards—determines the category.
Memorise the two anchors
Hard 17 or more
Stand against every dealer up-card. Drawing is too likely to bust relative to the value already held.
Hard 8 or less
Hit against every dealer up-card. The hand cannot bust with one additional card and is too weak to stand.
Hard 9, 10, and 11
These totals are the main hard-hand doubling opportunities because one card can produce a strong final total.
- Hard 9: double against dealer 3–6; otherwise hit.
- Hard 10: double against 2–9; hit against 10 or ace.
- Hard 11: under S17, double against 2–10 and hit against ace. Under H17, double against 2–ace.
If doubling is unavailable, hit each of these hands.
Why hard 12 is the awkward boundary
Hard 12 stands only against dealer 4–6 and hits against 2–3 or 7–ace. Learners often overgeneralise “stand against a weak dealer card,” but 12 is weak enough that the dealer’s 2 or 3 does not justify standing in this table.
Memory cue: hard 12 stands on the narrow 4–6 band; hard 13–16 stands on the wider 2–6 band.
Hard 13 through 16
Stand against dealer 2–6 and hit against 7–ace. These are called stiff hands because drawing risks a bust while standing often leaves a total below the dealer’s likely result. The dealer up-card decides which risk is less costly.
Hard 16 against 10 feels unpleasant because both options are weak. Basic strategy still chooses the action with the better expected result under the specified rules; it does not claim the hand has become favourable.
Common practice errors
- Standing on 12 against a dealer 2 or 3.
- Failing to double hard 9 against 3–6 when doubling is available.
- Doubling hard 10 into a dealer 10 or ace.
- Using the H17 hard-11-versus-ace rule at an S17 table.
- Treating a hand with an ace as automatically soft after the ace has been forced to 1.
How to practise
Start with the anchors, then drill hard 12 separately from 13–16. Finally mix in 9–11 doubles. In the trainer, hide the strategy hint and note whether errors come from the player total, dealer group, or double availability.
Reference the complete chart or continue to Soft Hands.