Puppet Stayman over 2N


Often OPENER will hold a balanced hand suitable for a 2N opening (20-21), except for a 5 card major.
AK K9875 KJ3 AQJ

Puppet Stayman over 2N allows RESPONDER to ask for a 5 card major in addition to the usual ask for 4.
Responder might have just a 3 card major to ask (with the usual 3 question).  Alert!
QJ3 QJ3 2 765432
or may have one or two four card majors.
The 3 is alertable.

Openers responses to Puppet Stayman are different:
3: One or two four card majors (i.e. "four card majorness")
3: Five hearts
3: Five spades
3N: No four or five card major

If Opener answers with 3 (one or two four card majors), Responder rebids:
3 to show 4 spades (the other major)
3 to show 4 hearts (the other major)
4 to show both four card majors (slam try)
4 to show both four card majors (to play just game)
Responder's bidding 3 of the major not held allows the big 2N hand to declare 4-4 major fits (remain hidden).

If Opener answers with 3 or 3, showing a 5 card major, Responder can raise with just 3 card support.

A 5-3 fit auction example:

Opener
AK K9875 KJ3 AQJ
Responder
QJ3 QJ3 2 765432
2N 3!
3! 4

    

 



A 4-4 fit auction example:

Opener
AK2 K987 KJ3 AQ3
Responder
QJ3 QJ54 2 76542
2N 3!
3! 3!
4 Pass

Responder asks with 3.
Opener shows "4 card majorness" with 3.
Responder shows a 4 card major by bidding the other major.
Opener settles into game.

 

A 4-4 fit, responder has both majors:

Opener
AK2 K987 KJ3 AQ3
Responder
QJ54 QJ54 2 7654
2N 3!
3! 4!
4 Pass

Responder asks with 3.
Opener shows "4 card majorness" with 3.
Responder shows both 4 card majors with 4.
Opener settles into game with four hearts (maybe also spades).

 


Here are some "no fit" auctions where the defence gets some information:

Opener Responder
2N 3!
3! 3N

Opener has "4 card majorness".
Responder denies "4 card majorness", but probably has "3 card majorness".




Opener Responder
2N 3!
3! 3
3N! Pass

Responder has 4 hearts.
Opener has 4 spades and fewer than 4 hearts.





Opener Responder
2N 3!
3N! Pass

Opener hasn't even a 4 card major.
Responder might not have a 4 card major.



Opener Responder
2N 3!
3! 3N

Opener has 5 hearts.
Responder has fewer than 3 hearts.
Responder probably has 3 or 4 spades.

 

Asking with 3 does NOT promise a 4 card major and is alertable.