blackchipjim
blackchipjim
Joined: Feb 1, 2010
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February 5th, 2010 at 2:13:05 PM permalink
I ran into a new sidebet in a blackjack game and was wondering what the house edge was. In addition to the house edge what would be the optimum count have to be to lessen the edge and gain an advantage if there is one. You put out a sidebet of 1-50 dollars per hand betting that the dealer's up card is between your two. If he matches yours it pays 30-1, if the one between 12-1, two between 6-1, three between 4-1 and finally any between 1-1. Any insight or help would be appreciated. Thanks
Wizard
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Wizard
Joined: Oct 14, 2009
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February 5th, 2010 at 2:23:22 PM permalink
How many decks? May I ask where you saw it? I tend to think it isn't countable, but I can at least give the house edge if I know the number of decks.
It's not whether you win or lose; it's whether or not you had a good bet.
DJTeddyBear
DJTeddyBear
Joined: Nov 2, 2009
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February 5th, 2010 at 2:25:37 PM permalink
Sounds like an adaptation of Red Dog (Acey Ducey).

But there are additional possibilities that need to be considered.

What if your two cards are consecutive? What if they are paired?

Is that dealer match payoff if they are paired, or not, or doesn't matter? It SHOULD matter, if you're paired and he matches, it should pay more than a match of either non-paired card.
Superstitions are silly, childish, irrational rituals, born out of fear of the unknown. But how much does it cost to knock on wood? Note that the same could be said for Religion. I.E. Religion is nothing more than organized superstition.
miplet
miplet 
Joined: Dec 1, 2009
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February 6th, 2010 at 8:42:33 AM permalink
I get an ev of -0.030797884962369 assuming 8 decks and me and excel are having a good day.

Event Combinations Probability Pays Return
trips 386880 0.005412956172516 30 0.16238868517548
1 spread 720896 0.010086275984652 12 0.12103531181583
2 spread 1310720 0.018338683608458 6 0.11003210165075
3 spread 1769472 0.024757222871419 4 0.099028891485675
4+ spread 14942208 0.20906099313643 1 0.20906099313643
loser 52342784 0.73234386822653 -1 -0.73234386822653
Total 71472960 1 -0.030797884962369


This and other side bets can be found in my google docs side bets
Itís the power of the CheesePuff
blackchipjim
blackchipjim
Joined: Feb 1, 2010
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February 7th, 2010 at 12:39:24 PM permalink
Hi, in response to your query it's 8decks with the ace high. I would prefer not to mention the casino if you don't mind. I would gladly send you the location if you pm me if that's possible. Thanks.
Wizard
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Wizard
Joined: Oct 14, 2009
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February 12th, 2010 at 2:39:11 PM permalink
I agree with miplet's results. I just added my own analysis to my blackjack appendix 8.
It's not whether you win or lose; it's whether or not you had a good bet.
NicksGamingStuff
NicksGamingStuff
Joined: Feb 2, 2010
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February 12th, 2010 at 10:43:24 PM permalink
Why dont you want to mention it? I know side bets are sucker bets but it seems like a fun bet to make, is there even private messaging on this site?
UTHfan
UTHfan
Joined: Mar 10, 2013
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October 25th, 2013 at 2:17:18 PM permalink
This side bet replaced Royal Match at the live BJ tables at MarylandLive.
Only the difference is the payouts are:
30-1
10-1
6-1
2-1
1-1

This is based on my recollection. I am sure of the 10-1 1-spread return. So, what is the EV like on this?
MangoJ
MangoJ
Joined: Mar 12, 2011
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October 26th, 2013 at 2:53:52 AM permalink
Quote: NicksGamingStuff

Why dont you want to mention it?



Because they may be countable, and if they are you wouldn't want to read it here.
miplet
miplet 
Joined: Dec 1, 2009
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October 29th, 2013 at 3:47:32 AM permalink
Quote: UTHfan

This side bet replaced Royal Match at the live BJ tables at MarylandLive.
Only the difference is the payouts are:
30-1
10-1
6-1
2-1
1-1

This is based on my recollection. I am sure of the 10-1 1-spread return. So, what is the EV like on this?


8 decks
EventCombinationsProbabilityPaysReturn
trips3868800.005412956172516300.162388685175485
1 spread7208960.010086275984652100.100862759846521
2 spread13107200.01833868360845860.11003210165075
3 spread17694720.02475722287141920.049514445742838
4+ spread149422080.20906099313642510.209060993136425
loser523427840.732343868226529-1-0.732343868226529
Total714729601-0.100484882674511


6 decks
EventCombinationsProbabilityPaysReturn
trips1578720.005248418213878300.157452546416347
1 spread3041280.010110665187939100.101106651879393
2 spread5529600.01838302761443560.110298165686611
3 spread7464960.02481708727948720.049634174558975
4+ spread63037440.20956651480456110.209566514804561
loser220147200.731874286899699-1-0.731874286899699
Total300799201-0.103816233553813
Itís the power of the CheesePuff

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