basic strategy

2

21forme

Well-Known Member
It is correct. With only 2 sevens left, your chance of getting a 21, to beat a dealer 20, is reduced enough to make it correct to stand
 
C

Canceler

Well-Known Member
The logic is that getting another 7 would give you 21. But, you already have half the sevens in the deck in your hand. This is enough to tip it from being a hit to a stand.
 
Gamblor

Gamblor

Well-Known Member
Funny thing, just saw a BS card that said Stand 7,7 v 8,9,10,A and double 9 v 7. Should still be able to find this at Trop. gift shop in AC.

Ploppy paranoia is right, BS cards are made by casinos to make them more money!
 
K

k_c

Well-Known Member
sagefr0g said:
got a link here and errrhhh i'm wondering if it is an error where it says to stand 7,7vs10 ?
http://www.blackjackinfo.com/bjbse.php?numdecks=1+deck&soft17=h17&dbl=d10&das=yes&surr=ns&peek=yes
or if it isn't an error can anyone explain the logic?
Click to expand...
It's a single deck composition dependent play. On balance the best total dependent strategy for hard 14 vs T is hit. Best strategy for 7-7 vs T considered on its own is stand so it is an exception to total dependent basic strategy and has been noted applies to single deck only.

Making composition dependent plays can gain a little EV but most don't worry about it too much because the gain is not that great.
 
2

21gunsalute

Well-Known Member
I don't understand the logic behind this either. Stand on a pair of 7's (14) but hit 15 and 16 against a 10? WTF?
 
sagefr0g

sagefr0g

Well-Known Member
k_c said:
It's a single deck composition dependent play. On balance the best total dependent strategy for hard 14 vs T is hit. Best strategy for 7-7 vs T considered on its own is stand so it is an exception to total dependent basic strategy and has been noted applies to single deck only.

Making composition dependent plays can gain a little EV but most don't worry about it too much because the gain is not that great.
Click to expand...
right i did use tdca to verify that the ev was better to stand on 7,7vs10 for h17 single deck. just as you say the ev is slightly better for standing as opposed to hitting.
errhh so i guess the basic strategy engine on this site gives composition dependent strategy as opposed to total dependent strategy? so i guess tdca where it has the blue dot by a strategy option indicates the normal total dependent strategy while sometimes a more optimal ev number that may not have the blue dot indicator is derived from composition dependent strategy?
 
M

MangoJ

Well-Known Member
Composition dependent strategy is always more accurate than total-dependent strategy, as it uses more information. The difference vanishes with increasing number of decks, as the hand composition has less effect on the exact remaining card distribution.
 
C

Canceler

Well-Known Member
You must be having a REAL good time out there!

sagefr0g said:
errhh so i guess the basic strategy engine on this site gives composition dependent strategy as opposed to total dependent strategy?
Click to expand...
No. The 7,7 is treated separately from the other ways of getting 14 because it's a pair. :)
 
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