logo

Double Exposure – Wizard of Odds in strategy

logo

strategy begin Double exposure is a blackjack variation in which both dealer cards are exposed. Naturally, there are other rule changes that favor the dealer to compensate. Although the house edge is greater than conventional blackjack, it still ranks as one of the best bets in the casino, if played properly.

The Wizard of Vegas

The Wizard of Macau

Las Apuestas

Double exposure is a blackjack variation in which both dealer cards are exposed. Naturally, there are other rule changes that favor the dealer to compensate. Although the house edge is greater than conventional blackjack, it still ranks as one of the best bets in the casino, if played properly. If you can find the game, this section will tell you how to play it.
The usual rules are the same as blackjack except:
Rules that can vary include but are not limited to:
Here are some effects of various rules on the player’s expected return:
Following are some actual places that offer or have offered double exposure, the specific rules, and house edge. Sometimes the game goes by other names like ‘Dealer Disclosure’ or ‘Face Up 21.’
Tropicana, Claridge, Taj Majal (Atlantic City) : 8 decks, dealer stands on soft 17, double only on hard 9-11 and soft 19-20, double after a split allowed, tied blackjack wins, split only once. House edge of 0.66%.
Stratosphere (LasVegas) : 6 decks, dealer hits soft 17, double on hard 9-11 only, double after split allowed, tied blackjack wins,split up to four times. House edge of 0.68%. Property removed the game.
Lady Luck (LasVegas) : 6 decks, dealer hits soft 17, double on any first two cards, double after split not allowed, tied blackjack wins, split only once, jack and ace of hearts pays 2 to 1, suited 6-7-8 pays double. House edge of 0.26%. Property has been closed for years.
Circus Circus (Reno) :6 decks, dealer hits soft 17, double hard 9-11 only, double after split not allowed, tied blackjack pushes, split only once. House edge of 1.47%.
Grand (Tunica) : 6 decks, dealer stands on soft 17, double on hard 9-11 only,double after split not allowed, tied blackjack wins, split only once. House edge of 0.96%.
A note about the suited 6-7-8 bonus at the Lady Luck. The only exception to the basic strategy , when the dealer hits a soft 17, is to hit a suited 6 and 7 against a dealer soft 12.
The following tables show the basic strategy for double exposure when the dealer stands on soft 17. To see the basic strategy when the dealer hits a soft 17 see my double exposure appendix .
Double Exposure appendix : The basic strategy when the dealer hits a soft 17.

Copyright © 1998-2016 Wizard of Odds Consulting, Inc. All rights reserved.
Privacy & Terms .

Blackjack – Composition-Dependent Strategy – Wizard of Odds by Article strategy

logo

strategy is The Wizard of Odds answers readers’ questions about Blackjack.

The Wizard of Vegas

The Wizard of Macau

Las Apuestas

Home

Ask The Wizard

Blackjack – Composition-Dependent Strategy

First of all, I would like to add my name to the growing list of people who love your web site. Your information is quite valuable to both the beginning and expert gambler, and you present your findings in a pleasant, understandable, and even humorous manner. I always check out your site before I head to Las Vegas or Lake Tahoe just to remind me how to play smartly.

Anyway, on to my question. Well, more of an observation: when the dealer pulls a 5 on a 16 for their sixth consecutive win, there’s always someone who gets up and leaves the table, muttering that the dealer is a mean cruel heartless soul, and goes in search of a ‘hotter’ table. But is there any truth in this? Obviously the dealer is inconsequential to the cards dealt (I like to say the dealer is ‘simply a messenger of the cards’) but are streaks in an 8-deck shoe inevitable, and even predictable? Or is it more like your roulette example, where the odds of each new round are exactly the same? Thanks once again for your web site.
Dave K. from Beverly Hills, California
Thanks for your kind words. Streaks, such as the dealer drawing a 5 to a 16, are inevitable but not predictable. Blackjack is not entirely a game of independent trials like roulette, but the deck is not predisposed to run in streaks. For the non-card counter it may be assumed that the odds are the same in each new round. Putting aside some minor effects of deck composition, the dealer who pulled a 5 to a 16 the last five times in a row would be just as likely to do it the next time as the dealer who had been busting on 16 for several hours.
Appendix 3b: Composition dependent exceptions to double deck basic strategy where the dealer stands on soft 17. Do these apply to multiple (4, 6 and 8) deck games or is there NO variation from Basic Strategy on these?
Trevor from Northampton, United Kingdom
No, these exceptions should not be used for 4-8 decks. There are a few exceptions in 4-8 deck games but they are so border line that it isn’t worth the bother to learn them. An interesting rule of thumb for all numbers of decks is that with 16 vs. 10, where the 16 is composed of 3 or more cards, in general the odds favor standing.
I have reviewed your blackjack site and FAQ, and I have a question about your Blackjack House Edge Calculator. From your description of methodology: ‘The program played each hand according to the correct basic strategy for those rules without regard to composition dependent exceptions.’ Can you explain how you determined total-dependent strategy (e.g., that which maximizes expected value)?
First, to those who don’t know, composition dependent strategy considers each and ever card in the player’s hand. Total dependent strategy only cares about the total, whether the hand is soft or hard, and whether it is a pair. So the basic strategy is total dependent. However the analysis of blackjack is generally composition dependent. The way derive the basic strategy charts is to take every composition of an initial two card hand and weight the expected value of each play by the probability of the composition. Let’s look at the case where the dealer stands on a soft 17 and the player has a 13 against a 2. The following table shows the composition dependent expected return of standing and hitting of all ways to compose a 2-card 13. The final column is the conditional probability of each compostion.
If we take the weighted average of standing and hitting we get the following expected values:
Although hitting 10,3 is the better play overall standing has the greater expected value and is thus the better play.
Thank you for your composition dependent basic strategy exceptions. However in The Theory of Blackjack Peter Griffin says the player should stand on 4+4+4+4 against an 8 in single deck. Is he wrong or did you overlook this play?
Griffin is of course correct. The expected value of hitting is -0.552613 and standing is -0.535787. Some plays I don’t list because they are either so obscure I didn’t find them or so unlikely I didn’t bother to list them.
First, great site. Second, sorry if this is in the wrong category, I did my best. Finally, Appendix 3B mentions a program used to come to all of the composition dependant strategy. I was wondering if this program was available for purchase or if you could just give me the formula used to determine what any given hand’s optimal play would be given the removal of any number of other cards (lise the perfect play calculator at gamblingtools.net). Thanks.
Thanks. My program is not very user friendly. I would recommend you use the blackjack calculator at gamblingtools.net , which will give you perfect advice for any situation and deck composition.

Copyright © 1998-2016 Wizard of Odds Consulting, Inc. All rights reserved.
Privacy & Terms .

Game Advice, Odds, and Strategy – Wizard of Odds – Wizard of Odds in strategy

logo

strategy begin Basic Strategy for Panamanian Blackjack – Charts

1
2
3
4
6
7
9
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
Y
Z

The Wizard of Vegas

The Wizard of Macau

Las Apuestas

Odds and Strategies calculated based on your input.
List of approved games of the Nevada Gaming Control Board. As of May 2016, there were 992 of them.

Copyright © 1998-2016 Wizard of Odds Consulting, Inc. All rights reserved.
Privacy & Terms .

Mississippi Stud – Wizard of Odds in strategy

logo

strategy related Mississippi Stud is a poker-based table game by ShuffleMaster. It can be played in several Mississippi casinos, as well as a few other states. Here in Las Vegas, it can be played at the Paris. The game is simple to play. Wins are based only on the player’s final five card hand.

The Wizard of Vegas

The Wizard of Macau

Las Apuestas

Home

games

Mississippi Stud

Mississippi Stud is a poker-based table game by ShuffleMaster. It can be played in several Mississippi casinos, as well as a few other states. Here in Las Vegas, it can be played at the Paris. The game is simple to play. Wins are based only on the player’s final five card hand. The skill is in deciding how much to raise, or fold, as the cards are revealed.
The following strategy was created by Joseph Kisenwether, with permission to publish here. I can verify that this strategy is indeed optimal.
The following graphic version of my strategy was created and used with permission by Ray A.
The following table shows number of combinations, probability, and contribution to the return of every possible hand and sequence of bets.
The lower right cell shows a house edge of 4.91%. On average, the player will bet 3.59 units per hand. The ratio of the expected loss to total amount bet, what I call the ‘element of risk,’ is 4.91%/3.59 = 1.37%.
The following tables show the expected value of raising one unit and three units on all possible starting hands. The player should make the play with the higher expected value. If both are less than -1, then the player should fold.
I have an unconfirmed report that the Barona casino in San Diego pays 5 to 1 on a straight, instead of the usual 4. Under optimal Barona strategy the house edge is 3.7591%. Using the basic strategy for the standard pay table in the Barona game results in a house edge of 3.7906%. So, the cost of errors using the standard strategy in the Barona game is 0.0315%.
ShuffleMaster, for providing me with their math report by Elliot Frome. I have some minor disagreements with the report, but it was helpful in my analysis.
Joseph Kisenwether, for providing the strategy posted here, and for correcting an earlier mistake in my analysis.

Copyright © 1998-2016 Wizard of Odds Consulting, Inc. All rights reserved.
Privacy & Terms .

logo
Powered by WordPress | Designed by Elegant Themes
You might also likeclose