H = Hit
S = Stand
D = Double Down
P = Split
R = Surrender

Knock-Out BlackJack Basic Strategy Table

 

Plr/DUP 2 3 4 5 6 7 8 9 10 Ace
Hard 7 H H H H H H H H H H
Hard 8 H H H D D H H H H H
Hard 9 H D D D D H H H H H
Hard 10 D D D D D D D D H H
Hard 11 D D D D D D D D D H
Hard 12 H H S S S H H H H H
Hard 13 S S S S S H H H H H
Hard 14 S S S S S H H H H H
Hard 15 S S S S S H H H R R
Hard 16 S S S S S H H R R R
Hard 17 S S S S S S S S S S
Hard 18 S S S S S S S S S S
Hard 19 S S S S S S S S S S
Hard 20 S S S S S S S S S S
Hard 21 S S S S S S S S S S
Soft 13 H H H D D H H H H H
Soft 14 H H H D D H H H H H
Soft 15 H H D D D H H H H H
Soft 16 H H D D D H H H H H
Soft 17 H D D D D H H H H H
Soft 18 S D D D D S S H H H
Soft 19 S S S S S S S S S S
Soft 20 S S S S S S S S S S
2-2 H H P P P P H H H H
3-3 H H P P P P H H H H
4-4 H H H H H H H H H H
5-5 D D D D D D D D H H
6-6 H 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 P P
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 P