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Question on Demuy-Wolpert system Where is this hand type hidden?

#1 User is offline   glen 

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Posted 2005-August-12, 11:13

Im impressed with the system used by Demuy-Wolpert. For their pdf, go to:

http://www.worldbrid...articipants.htm

and click on systems for Canada.

Nice version of Stayman/Puppet Stayman over 2NT:

After 3:
> 3: No four card major, or 5s. Now:
>> 3: Wants to play in 3NT, will find out if 5s even if does not want to know.
>> 3: 4s & 5s
>> 3NT: 4s & 5s

> 3/: 4 in major
> 3NT: 5s

They could play instead 3NT shows 4-4 majors, and 3 is 4/5s (then 3 asks if 5s).

Over 1NT, they use 2 as either weak or GF Stayman or with Game Invite 5s, and 2 as transfer to Game Invite Stayman (appears to promise a 4 card major).

After 2:
> 2: No four card major. Now:
>> 2: Weak with both majors
>> 2: Game Invite with 5s
>> 2NT+: Game forcing (or perhaps transfers).

> 2: 4/5s
>> 2: Game Invite with 5s
>> 2NT+: Game forcing (or perhaps transfers).

>2: 4/5s
>> 2NT+: Game forcing (or perhaps transfers).

After 2 (transfer or Game Invite Stayman):
> 2: Usually not (never?) 4s
>> 2: Game Invite with 4s
>> 2NT: Game Invite with 4s
>> 3+: As with transfers.

> 2: 4s
>> 2NT: Game Invite with 4s
>> Rest: With fit

The question I have is where is the hand type with Game Invite and 5s hiding? Does the hand need to be treated as if just 4s in the structure?

To include hands without 4cM in Game Invite Stayman, they could play:

After 2 (transfer or Game Invite Stayman):
> 2: Never 4s
>> 2: Game Invite without 4s
>> 2NT: Game Invite with 4s
>> 3+: As with transfers.

> 2: 4s, not 4s
>> 2NT: Game Invite without 4s
>> Rest: With fit

> 2NT: Minimum with 4s and 4s
> 3: Maximum with 4s and 4s
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#2 User is offline   mikeh 

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Posted 2005-August-12, 12:14

The modified puppet has been around for years. I learned it when Doug and Sandra Fraser moved to Victoria, leaving Montreal, where I believe it originated.

I love it: I dislike puppet because it cannot handle 5-4 major suit holdings by responder. So I used to much prefer Smolen.

This modified puppet gives you the best of both worlds at the expense only of a small amount of memory work.

I believe (but am not sure) that it was created by Eric Kokish.
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#3 User is offline   keylime 

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Posted 2005-August-12, 13:35

Kudos to these two - their CC is the best one I've seen so far in terms of full disclosure.
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#4 User is offline   Double ! 

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Posted 2005-August-12, 14:04

Is Justin playing or has he played yet? Anyone know how they did?
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#5 User is offline   the hog 

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Posted 2005-August-12, 15:55

Double !, on Aug 13 2005, 06:04 AM, said:

Is Justin playing or has he played yet? Anyone know how they did?

Got whopped max by the Aussies.
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#6 User is offline   Stephen Tu 

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Posted 2005-August-12, 16:00

Quote

This modified puppet gives you the best of both worlds at the expense only of a small amount of memory work.

I believe (but am not sure) that it was created by Eric Kokish


Kokish has probably written articles on it, but I think this schema over 2nt is attributed to M. Sklar. It's also described in Marshall Mile's "Bridge from the Top, vol. 1".
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