Up to Date Basic Strategy

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WorkIsPlay

Member
#1
#1
the basic strategy engine in this website and the Casino Verite blackjack software has different basic strategies.

Filter's for both engines: 2 deck, Double on any, double after spit, early surrender, hit soft 17 and dealer peeks

on this website it says surrender 14 vrs dealers 10, but on the BJ software it told me i was incorrect for surrendering,

btw i've noticed that this sites basic strategy changed about last month, like treating a 14 like a 15 on the surrenders, and double a soft 18 v 2?:eek:

not feeling comfortable to first being under the impression that "THIS IS THE OPTIMAL BASIC STRATEGY" then later on... "OH UMM... I MEAN THIS IS THE OPTIMAL BASIC STRATEGY" if it was the best there wouldn't be any leaks to change in the first place.:whip:

Is there any reliable credible resources any one can guide me too?:confused:
 
KenSmith

KenSmith

Administrator
Staff member
#4
#4
WorkIsPlay said:
the basic strategy engine in this website and the Casino Verite blackjack software has different basic strategies.

Filter's for both engines: 2 deck, Double on any, double after spit, early surrender, hit soft 17 and dealer peeks

on this website it says surrender 14 vrs dealers 10, but on the BJ software it told me i was incorrect for surrendering,

btw i've noticed that this sites basic strategy changed about last month, like treating a 14 like a 15 on the surrenders, and double a soft 18 v 2?:eek:

Is there any reliable credible resources any one can guide me too?:confused:
Click to expand...
This site's strategy definitely did not change in the last month.
If you're choosing early surrender as you indicate in your post, that's probably not what you really want, and I'm sure that's why you are getting different results.

No site will be a "reliable credible resource" if you put in the wrong parameters for your game.
 
S

southAP

Well-Known Member
#5
#5
You get different basic strategy based on the paramaters "rules" of the game, example hit and soft 17 have different ones. Btw, which strategy are you attaching to the game when playing CVBJ? There are quite a few in there especially when it comes to the index plays.
 
K

k_c

Well-Known Member
#6
#6
WorkIsPlay said:
the basic strategy engine in this website and the Casino Verite blackjack software has different basic strategies.

Filter's for both engines: 2 deck, Double on any, double after spit, early surrender, hit soft 17 and dealer peeks

on this website it says surrender 14 vrs dealers 10, but on the BJ software it told me i was incorrect for surrendering,

btw i've noticed that this sites basic strategy changed about last month, like treating a 14 like a 15 on the surrenders, and double a soft 18 v 2?:eek:

not feeling comfortable to first being under the impression that "THIS IS THE OPTIMAL BASIC STRATEGY" then later on... "OH UMM... I MEAN THIS IS THE OPTIMAL BASIC STRATEGY" if it was the best there wouldn't be any leaks to change in the first place.:whip:

Is there any reliable credible resources any one can guide me too?:confused:
Click to expand...
It's a close decision. If I'm not mistaken CVBJ just assumes player has a hard total of 14 and does not consider the hand's composition.

These are all possible 2 card hard 14s with best comp dependent EVs

T-4 hit = -49.94%, prob vs T = 31/103*8/102*2
9-5 hit = -50.26%, prob vs T = 8/103*8/102*2
8-6 hit = -50.79%, prob vs T = 8/103*8/102*2
7-7 hit = -53.03%, prob vs T = 8/103*7/102

When all of the possibilities are weighted by their probabilities hitting 14 vs T has an aggregate EV = -50.34%. Since EV for early surrender = - 50.00%, surrender is the best decision.
*
If you simply assume player's total is 14 without considering its composition, remove a single ten from a full 2 deck shoe, and hit the 14 until you have a total of 17 or more then hit EV = -50.14%.

Anyway the point is that it is a close decision with early surrender slightly better than hitting.
 
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FLASH1296

FLASH1296

Well-Known Member
#9
#9

There are only two (2) off-line sources for Perfect Basic Strategy for any rules and number of decks.

Any real student of the game owns both:

The Theory of Blackjack

Blackjack Attack

Here is a quick question to demonstrate that you MAY not know Basic Strategy:

You have 12 and the dealer shows a 4.

What is the proper Basic Strategy Play with 2, 6, and 8 decks, all S17. ?
 
K

Koz1984

Well-Known Member
#10
#10
FLASH1296 said:

There are only two (2) off-line sources for Perfect Basic Strategy for any rules and number of decks.

Any real student of the game owns both:

The Theory of Blackjack

Blackjack Attack

Here is a quick question to demonstrate that you MAY not know Basic Strategy:

You have 12 and the dealer shows a 4.

What is the proper Basic Strategy Play with 2, 6, and 8 decks, all S17. ?
Click to expand...
Assuming S17, I think it's the same. Stand. I somehow feel this is a trick question and the answer is different. I only play 8 deckers and know it's a stand in that situation.
 
C

Canceler

Well-Known Member
#11
#11
Koz1984 said:
Assuming S17, I think it's the same. Stand. I somehow feel this is a trick question and the answer is different.
Click to expand...
I’m guessing the “trick” is that he’s referring to composition dependent basic strategy, where 12 vs. 4 is sometimes a hit.
 
FLASH1296

FLASH1296

Well-Known Member
#12
#12

The answer to today's blackjack puzzler is:

Single Deck / Double Deck hit Ten-Deuce.

4 and 6 decks [all 12's] hit (S17)

stand with 8 decks. [all 12's]
 
FLASH1296

FLASH1296

Well-Known Member
#15
#15

pp.174 Griffin's The Theory of Blackjack, 6th ed.

~ OR ~

pp. 486 in Schlesinger's Blackjack Attack, 3rd ed.
 
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kewljason

kewljason

Well-Known Member
#16
#16
Basic strategy could be altered by one's playing style, thus making different basic strategies taylored for not only different rules but different people and playing styles. :rolleyes:

Let's say I was going to come up with a basic strategy for my style of play which is to play off the top of a shoe and exit at a predetermined negative count thus avoiding most negative counts. Now, before you say 'basic strategy' doesn't apply to counting, I am talking basic strategy. No variation by count. Just a single set of rules. And for this style of play since the majority of hands would be played at positive counts basic strategy would be to stand on all 12 vs 4, along with 16 vs 10 and other such borderline cases.

A player that only enters a game at TC of +3 could play a very different basic strategy than the common ones posted.
 
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K

k_c

Well-Known Member
#18
#18
FLASH1296 said:

The answer to today's blackjack puzzler is:

Single Deck / Double Deck hit Ten-Deuce.

4 and 6 decks [all 12's] hit (S17)

stand with 8 decks. [all 12's]
Click to expand...
Please don't take this as a slight as this is mainly nitpicking. I'm only doing it because I can. :p

Code: 
[u]2 card hard 12s versus 4 for any number of decks[/u]
               [u]T-2[/u]        [u]9-3[/u]        [u]8-4[/u]        [u]7-5[/u]        [u]6-6[/u]
1 deck s17      h          s          s          s          ps
1 deck h17      h          s          s          s          ps

2 decks s17     h          s          s          s          ps
2 decks h17     h          s          s          s          ps

3-7 decks s17   h          s          s          s          ps
3-7 decks h17   s          s          s          s          ps

>= 8 decks s17  s          s          s          s          ps
>= 8 decks h17  s          s          s          s          ps
 
W

WorkIsPlay

Member
#19
#19
BIG QUESTION, how is there a difference in the hard 12's,,, how does 10-2 have a different effect from 9-3, makes no sense to me,, only difference i see is how it affects the count
 
FLASH1296

FLASH1296

Well-Known Member
#20
#20
As long as we are picking nits, I should not have written "any 12's".

However, as we count cards we are uninterested in Composition-Dependent B.S.

Furthermore since 10–2 appears as 67% of the twelves and 9-3 and 8-4 each 16% — a weighted average has my Basic Strategy for 12 vs. 4 correct as stated, if barely so.

Actually I believe that this is an important thread. Lets take a look at:

  • A4 vs 4
  • A2 vs 5
  • ..8 vs. 6
 
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