Paradroid
Paradroid
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September 27th, 2014 at 11:18:59 AM permalink
Can someone estimate the house edge under the rules at my local casino, Casino Cosmopol in Stockholm?

6 decks, CSM
Dealer stands on soft 17
Double on hard 9-11 only
European No Hole Card, unswitched blackjacks are not paid until the dealer draws
Switched blackjack counts as 21 points
ChesterDog
ChesterDog 
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September 29th, 2014 at 1:33:06 PM permalink
Quote: Paradroid

Can someone estimate the house edge under the rules at my local casino, Casino Cosmopol in Stockholm?

6 decks, CSM
Dealer stands on soft 17
Double on hard 9-11 only
European No Hole Card, unswitched blackjacks are not paid until the dealer draws
Switched blackjack counts as 21 points



With an infinite deck, instead of 6 decks, I get low house edge of 0.2910% for your rules. I assumed 3 splits allowed including aces, player loses all double and split bets to a dealer's blackjack, and unswitched blackjack is paid against a dealer's 22.

For comparison, my infinite deck results for regular Blackjack Switch has a house edge of 0.6726%, while the Wizard gives the house edge for the regular H17 6-deck game as 0.58%.
Hunterhill
Hunterhill
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September 29th, 2014 at 3:09:46 PM permalink
Quote: ChesterDog

Quote: Paradroid

Can someone estimate the house edge under the rules at my local casino, Casino Cosmopol in Stockholm?

6 decks, CSM
Dealer stands on soft 17
Double on hard 9-11 only
European No Hole Card, unswitched blackjacks are not paid until the dealer draws
Switched blackjack counts as 21 points



With an infinite deck, instead of 6 decks, I get low house edge of 0.2910% for your rules. I assumed 3 splits allowed including aces, player loses all double and split bets to a dealer's blackjack, and unswitched blackjack is paid against a dealer's 22.

For comparison, my infinite deck results for regular Blackjack Switch has a house edge of 0.6726%, while the Wizard gives the house edge for the regular H17 6-deck game as 0.58%.

The Wizard lists the edge for stand on s17 as-0.30%. But the op, s rules were nosoft dbl and European no hole card and a unswitched bj doesn't get paid right away. So I would think it would be a higher casino edge.
The mountain is tall but grass grows on top of the mountain.
ChesterDog
ChesterDog 
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September 29th, 2014 at 3:15:17 PM permalink
Quote: Hunterhill

...The Wizard lists the edge for stand on s17 as-0.30%. But the op, s rules were nosoft dbl and European no hole card and a unswitched bj doesn't get paid right away. So I would think it would be a higher casino edge.



I agree with your objections and will continue to check my results.
Paradroid
Paradroid
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September 30th, 2014 at 9:13:20 AM permalink
Just to clarify, an unswitched blackjack does get paid against a dealer 22.
ChesterDog
ChesterDog 
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September 30th, 2014 at 11:39:32 PM permalink
Quote: Paradroid

Just to clarify, an unswitched blackjack does get paid against a dealer 22.


I doubled checked my calculations, and I still get an infinite-deck house edge of 0.2910% for your rules. Here are my results for several rule combinations:

H17/S17DoubleEur./Amer.House Edge
S17allEuropean0.2863%
H17allEuropean0.6861%
S179 to 11European0.2910%
H179 to 11European0.6927%
S17allAmerican0.2710%
H17allAmerican0.6726%
S179 to 11American0.2757%
H179 to 11American0.6792%


The Wizard gives 0.58% as the house edge for the standard 6-deck Las Vegas game, and I get a corresponding infinite-deck edge of 0.67%, which is 0.09% higher. If the infinite-deck edge for your rules is 0.29%, then the 6-deck edge might be 0.29% - 0.09% or 0.20%.
Paradroid
Paradroid
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October 1st, 2014 at 8:50:38 AM permalink
Thank you for your work. It makes sense that the No Soft Double and European No Hole Card rules would have less impact on the house edge in Switch compared to regular BJ, as a player should double less often in Switch.
Hunterhill
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October 1st, 2014 at 9:51:21 AM permalink
Nice work Chesterdog.
How often will a player end up pushing on bj ?
The mountain is tall but grass grows on top of the mountain.
ChesterDog
ChesterDog 
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October 1st, 2014 at 8:45:00 PM permalink
Quote: Hunterhill

Nice work Chesterdog.
How often will a player end up pushing on bj ?



For a 6-deck shoe, the player would be dealt two blackjacks and the dealer would be dealt blackjack 0.0095% of the time, and the player would be dealt one blackjack and dealer would be dealt blackjack 0.4143% of the time. And to repeat, the player's dealt blackjack doesn't push against the dealer's 22.

By the way, I believe one reason why the H17 game is so much worse than the S17 game is that the dealer has a higher probability of getting 22.
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