Source: www.acblunit390.org When partner opens 1NT and you know they could possibly have a 5 card major you can jump to 3as Puppet Stayman so long as you have these requirements:
  • Game Forcing Values
  • One or both Majors. Either 3-3 or 4-3. Never 4-4. With 4-4 use whatever version of Stayman you play.
Responses by opener to 3are: Version 1
  • With a 5 card major bid it.
  • With no 5 card major or 4 card major bid 3NT.
  • With one or both 4 card majors bid 3. Responder if interested in finding a 4-4 major fit can now bid:
    • 3 of the major they do not have which shows 4 of the other major.
    • 4which asks opener to pick their major. (Because responder is 4-4)
Version 2
  • With a 5 card major bid it.
  • With no 5 card major bid 3. Responder if interested in finding a 4-4 major fit can now bid:
    • 3 of the major they do not have which shows 4 of the other major.
I like version 2 better because less is revealed about opener’s hand. Justin Lall wrote a good article about the reasons for using version 2.