This is the way Vincent Tzeng plays BlackJack  (Mar. 19, 2003 simplified)

 

Dealer Shows                   (Dealer must hit when showing less than 17)

YourHand
2
3
4
5
6
7
8
9
10
A
2-8
........Hit  (obvious).....
9
H
D
D
D
D
Hit
10 or 5,5
H
D
D
D
D
D
H/D?
Hit
11
Hit

........ DOUBLE down ......

H
H
12-15
Stand
Hit
16-21
........Stand.....
A,2-6
H
D

 D

D
D
Hit
A,7
H
D
D
D
D
Stand
H
H
A,8-9
Stand
S/D?
S/D?
Stand
2,2  3,3  4,4
All SPLITs
Hit
6,6
7,7 
SPL
Hit
8,8
SPL
SPL
SPL
Stand
9,9
S/SPL?
Stand
10,10
Stand
SPL
Stand

H: hit   S: stand  D: double down   SPL: split     ? : optional, on your instinct

Most Difficult hands are:  8,8   A,7   A,8   A,9   9,9 and also when dealer showing 2 or A

Reminder:   20-point is always a very GOOD hand, so don't be greedy!
(19-point hand is also pretty good!)