Paigowdan
Paigowdan
Joined: Apr 28, 2010
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December 2nd, 2015 at 10:16:45 AM permalink
Quote: Wizard

I invite everybody to visit my new page on Double Blackjack. As always, I welcome questions, comments, suggestions, and especially corrections.



Mike,
The page on Double Blackjack looks very good.
I do have two changes to request:
1. #8 in Rules says “The player's Two-Card hand shall be compared to the dealer's Two-Card hand. [then it reiterates the same thing] Likewise, the player's Two-Card hand shall be compared to the dealer's Two-Card hand. [second clause should say Three-card hand….]
2. Game inventors must include Al Lwin, the game’s co-developer (and financier, and all-around wonderful soul if you know the guy). So the bottom should read:

I would like to thank:
• Dan Lubin and Al Lwin, the game inventors, for supplying to me the math report by Stephen How. This saved me the time from analyzing it myself.
• Charlie Patrick, for the use of his strategy above.
Beware of all enterprises that require new clothes - Henry David Thoreau. Like Dealers' uniforms - Dan.
Wizard
Administrator
Wizard
Joined: Oct 14, 2009
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December 2nd, 2015 at 10:31:55 AM permalink
Thanks Dan for those corrections.
It's not whether you win or lose; it's whether or not you had a good bet.
charliepatrick
charliepatrick
Joined: Jun 17, 2011
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December 2nd, 2015 at 2:43:29 PM permalink
Quote: Wizard

...new page on Double Blackjack...

The page looks good. I don't know whether you need to imply "Make 2-card 20, otherwise 3-card 21" for the exception rule for two 18- hands.
ThatDonGuy
ThatDonGuy
Joined: Jun 22, 2011
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December 2nd, 2015 at 6:00:57 PM permalink
Here's another "simple" strategy, although I haven't worked out the house edge yet;

First, add up the values of the five cards, always counting Aces as 1 (even if one or two will end up being used as 11).
Next, look in the column with that number on the top, and go down until you can make a 2-card hand with that value; set the 2-card hand to that number.
For example, with KK754, that is 36, so look down the 36 column; you can't set a 2-card 21 or 18, but you can set a 2-card 17, so set the hand to K54/K7.

Numbers in green indicate that the 3-card hand is 16 or less
Numbers in red indicate that the 3-card hand is 22 or more
In the <34 column, if "3/" appears in a box, set the 3-card hand to that number instead of the 2-card hand
<34343536373839404142>42
2121212117171819202121
2020201820212120212020
3/2117181718181921191919
1913171919202018181818
1819142021191717171717
3/2018191516
17141516
3/191516
3/1816
3/17
Paigowdan
Paigowdan
Joined: Apr 28, 2010
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December 2nd, 2015 at 6:39:28 PM permalink
Don,
I like.
Still, what we did do at this point is create a 7x7 grid (all combo's of 17 to 21 + foul) as a Basic Strategy Chart for the game on one side of a strategy card, and a four-sentence plain English on the other side. Use the look-up chart to get the best hand setting result, or follow the plain English strategy, to set the hand.

We will print up strategy cards, to make available to the players the strategy.
Beware of all enterprises that require new clothes - Henry David Thoreau. Like Dealers' uniforms - Dan.
ThatDonGuy
ThatDonGuy
Joined: Jun 22, 2011
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December 3rd, 2015 at 10:47:52 AM permalink
Quote: ThatDonGuy

Here's another "simple" strategy, although I haven't worked out the house edge yet


The House Edge is 1.4819% - if you make the following change:
If the total with Aces = 1 is between 24 and 33 and you have at least one Ace, add 10
If the total with Aces = 1 is 23 or less and you have at least two Aces, add 20

Without this "fix", you get a situation like A K 8 4 4, where if the Ace = 1, this is 27, so set 8 4 4 / A K, but if the Ace = 11, this is 37, so set A 4 4 / K 8.
ThatDonGuy
ThatDonGuy
Joined: Jun 22, 2011
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April 20th, 2016 at 11:21:33 AM permalink
Pardon the bump...

Is this game still at GVR? How about other Vegas casinos? I'm working on my itinerary for a Vegas trip in late June, and have to sync up the bus schedules...
Paigowdan
Paigowdan
Joined: Apr 28, 2010
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April 20th, 2016 at 12:06:09 PM permalink
Quote: ThatDonGuy

Pardon the bump...

Is this game still at GVR? How about other Vegas casinos? I'm working on my itinerary for a Vegas trip in late June, and have to sync up the bus schedules...


Yes. It passed its field trial (see Nevada Gaming rules Double Blackjack), and is at GVR opposite Poker with a Joker (aka Wild 5 Poker).

GVR is happier with Poker with a Joker as it gets tremendous action, but Double Blackjack is hanging in there.
Beware of all enterprises that require new clothes - Henry David Thoreau. Like Dealers' uniforms - Dan.
gordonm888
gordonm888
Joined: Feb 18, 2015
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April 20th, 2016 at 1:28:27 PM permalink
Well, I just discovered this thread and I must say that this sounds like a fun game. I'll search it out on my next trip to Vegas.
So many better men, a few of them friends, were dead. And a thousand thousand slimy things lived on, and so did I.

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