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imagic6554

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Reply with quote  #1 
A friend of mine sent me a picture of this stack. I'm not familiar with it. Does anyone know what the stack is called and where it can be found?
Thanks for your help.
 Frank Stack.jpg 

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Chi Han

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Reply with quote  #2 
It looks like a cyclical stack that goes up by a value of 2 each time, suit order spades hearts clubs diamonds, with some misplaced cards in the center. Not sure if a stack like this would have a name.
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Robin Dawes

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Reply with quote  #3 
Chi Han is correct - it is a variant of the stack named after (though not invented by) Si Stebbins.  Because 13 is prime, you can make the step size (or should that be "Steb size"?) anything you like.  Most applications of the principle that I know of use either 3 or 4.

The only deviation from the pure stack in this image is that the Jack of Diamonds has been replaced  by a duplicate 4 of Hearts ... and it looks like there is some sort of mark on the face of the duplicate 4 ... possibly a drawing, possibly a signature.

I don't know of a name for this specific arrangement, nor in what routine it is used.

The "Encyclopedia of Card Tricks" has a chapter devoted to stacked decks ... you might find this there.
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luvisi

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Reply with quote  #4 
As already observed, Si Stebbins with a step size of 2 and using SHoCkeD order instead of CHaSeD.

See https://archive.org/details/sistedbbinscardt00stebrich for more background.

Andru
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imagic6554

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Reply with quote  #5 
I want to thank everyone for their feedback. I have passed all the information to my buddy. He is appreciative also.
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Mike Powers

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Reply with quote  #6 
It's also a "Tetradistic" stack like the one Ackerman uses for his mem deck. Each set of 13 is in the same numerical order viz. A 3 5 7 9 J K 2 4 6 8 10 Q. It's also easier to remember the order because of the "plus 2" pattern. 

In Ackerman's stack you'd take a random group of 13 containing 1 of each type of card regardless of suit and then shuffle them. Now you'd opt for a suit order e.g. SHoCkeD and arrange the next group of 13 in the same numeric order but with the suits moved up one by SHoCkeD i.e. if the first card is the AS, then the 14th card is the AH etc.

Ackerman then memorizes his first 13 cards. It's easy to calculate the value of any card by its number. For example the 15th card will have the same numeric value as the 2nd card and it's suit will be 1 higher than the 2nd card's suit in SHoCkeD order.

The mathematical properties via a FARO shuffle are awesome too.

The stack used here is very easy to remember but it's good to really memorize what card is at what number in the first 13 cards. Then you can calculate. It's a fairly simple mem deck .

Mike
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Claudio

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Reply with quote  #7 
Mike, if I am not mistaken, most (if not all?) Si Stebbins are tetradic stacks.
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imagic6554

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Reply with quote  #8 
Thanks Mike,
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Mike Powers

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Reply with quote  #9 
You're right Claudio. I never noticed that. It's obvious when you look, though. As Robin pointed out, 13 being prime is very helpful in this situation since every number less than the prime number is relatively prime to the prime number i.e. they have no common factor.

The disadvantage of Stebbins and many such stacks is the alternating red/black. I have friends who swear that no one notices, but I find it hard to believe. I don't think you can spread an alternating color stack and leave it in view for any length of time. People are often too nice to say "Hey, if that's really random, why is every other card red?"

The Ackerman stack isn't regular like that. It will stand up under scrutiny. It's much harder to see the pattern. And it still has many mathematical possibilities.

Of course Stebbins has even more mathematical possibilities some of which are surprising. I had a variation of a Chris Mayhew item in the Card Corner that uses some Stebbins features. Maybe I'll post a PDF for anyone who's interested.

Mike
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Mike Powers

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Reply with quote  #10 
I uploaded a PDF of Automatic Prediction from the April 2010 Linking Ring. You can get it by going to:

http://www.mallofmagic.com

Then click on the LIVE On-Line Lecture button. Finally, click on the FREE STUFF CLICK HERE link. You can download Automatic Prediction and a few other items that might be of interest.

If you've been playing with the Si-Stebbins stack you might find this item to fit a Stebbins set. At the end of the write-up there's a description of how to easily get the deck back in Stebbins order. That makes it easy to fit it into a sequence of tricks that use Stebbins.

MIke
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Paul Hallas

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Reply with quote  #11 
Quote:
Originally Posted by Mike Powers


The disadvantage of Stebbins and many such stacks is the alternating red/black. I have friends who swear that no one notices, but I find it hard to believe. I don't think you can spread an alternating color stack and leave it in view for any length of time. People are often too nice to say "Hey, if that's really random, why is every other card red?"

Mike


A quick spread and turnover or fan is fine, but why would anyone WANT to leave it in view for any length of time??? Like, I'll just leave the deck spread face up while I make a cup of tea.. You move from one routine to another and if you want to leave it spread face up for any length of time you do that after you've done the Stebbins required effects and shuffled the deck to lose the stack. 

I've used it on and off for over 45 years and never been called on it and I know a lot of impolite people, lol. I've always smiled to myself when people worry about the deck withstanding scrutiny when shown face up. I'd never leave any type of stacked deck in view for any length of time, it's not intended to be a challenge. Though some people like to think their stacks are 'best'  because they can withstand more scrutiny, handled intelligently its not a problem. 

Luckily these days there are a number of cyclic stacks without the red/black sequence that newcomers can choose from, but you can't go learning a new stack every time a new one comes along...Well, you could, but why not stick with the familiar if you like specific effects you do with it?  


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Claudio

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Reply with quote  #12 
Thanks for the Pdf, Mike. I really like the faro ending. I think there's an effect in one of the Steve Beam SACT that relies on the propriety you described. I'll try to dig out once I'm back home.
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