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MGP Answers
Originally Posted by
Picasso
I’m playing an online BJ game with these rules: 8 decks, S17, D9-11, DAS, peek, late surrender (on any amount of cards even split aces) and double down rescue. Normally (4 decks or more), one would not double 11 vs A or 9 vs 2 in a S17 game, but since you can rescue your double, why wouldn’t you double down on these? Bottom line question: does the double down rescue rule alter basic strategy in any way?
Picasso,
I ran your game through MGP's CA program and found an IBA of -0.26386...%: thus, the LSn and DDR rules are quite beneficial, but are not enough to make the game +EV off-the-top. By the way, I assumed that LSn and DDR are available even on split hands: if not, the IBA would suffer a bit.
The B.S. for this game is shown below. The changes from 8D S17 DAS D9 LS are simple:
- DD on 10 or 11 vs. A.
- Use DDR vs. 8-A for any total of 16 or lower; never DDR vs. 2-7, and never DDR on a total of 17 or more.
Your guess about 9 vs. 2 was close: EV-H is 0.076..., EV-DD is 0.068..., so H is still correct. You were correct on 11 vs. A, and notice that even 10 vs. A is now a DD.
By the way, if you want a copy of the Excel output with all the EV's, send me an email or PM.
Hope this helps!
Dog Hand
P.S. The BS table looks better in color
Hard Totals |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
1 |
4 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
5 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
6 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
7 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
8 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
9 |
H |
D |
D |
D |
D |
H |
H |
H |
H |
H |
10 |
D |
D |
D |
D |
D |
D |
D |
D |
H |
D |
11 |
D |
D |
D |
D |
D |
D |
D |
D |
D |
D |
12 |
H |
H |
S |
S |
S |
H |
H |
H |
H |
H |
13 |
S |
S |
S |
S |
S |
H |
H |
H |
H |
H |
14 |
S |
S |
S |
S |
S |
H |
H |
H |
H |
H |
15 |
S |
S |
S |
S |
S |
H |
H |
H |
R |
H |
16 |
S |
S |
S |
S |
S |
H |
H |
R |
R |
R |
17 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
18 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
19 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
20 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
21 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Soft Totals |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
1 |
12 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
13 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
14 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
15 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
16 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
17 |
H |
H |
H |
H |
H |
H |
H |
H |
H |
H |
18 |
S |
S |
S |
S |
S |
S |
S |
H |
H |
H |
19 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
20 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
21 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pairs |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
1 |
A, A |
P |
P |
P |
P |
P |
P |
P |
P |
P |
P |
2, 2 |
P |
P |
P |
P |
P |
P |
-- |
-- |
-- |
-- |
3, 3 |
P |
P |
P |
P |
P |
P |
-- |
-- |
-- |
-- |
4, 4 |
-- |
-- |
-- |
P |
P |
-- |
-- |
-- |
-- |
-- |
5, 5 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
6, 6 |
P |
P |
P |
P |
P |
-- |
-- |
-- |
-- |
-- |
7, 7 |
P |
P |
P |
P |
P |
P |
-- |
-- |
-- |
-- |
8, 8 |
P |
P |
P |
P |
P |
P |
P |
P |
P |
P |
9, 9 |
P |
P |
P |
P |
P |
-- |
P |
P |
-- |
-- |
10, 10 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DD Rescue |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
1 |
11 |
X |
S |
S |
S |
S |
X |
X |
X |
X |
X |
12 |
S |
S |
S |
S |
S |
S |
R |
R |
X |
R |
13 |
S |
S |
S |
S |
S |
S |
R |
R |
R |
R |
14 |
S |
S |
S |
S |
S |
S |
R |
R |
R |
R |
15 |
S |
S |
S |
S |
S |
S |
R |
R |
R |
R |
16 |
S |
S |
S |
S |
S |
S |
R |
R |
R |
R |
17 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
18 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
19 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
20 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
21 |
S |
S |
S |
S |
S |
S |
S |
S |
S |
S |
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