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Pass or 3NT?


mich-b

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[hv=pc=n&w=sq98h743djt8764ct&d=n&v=b b=13&a=p2np3cp3dp]133|200|2NT = 20-22

3C = Puppet Stayman

3D = 1 or both 4 card majors[/hv]

Pass or 3NT? Can anyone run a simulation?

IMO _P = 10, 3N (or whatever) = 9.

Vulnerable, at teams, it's close but going on is betting on a diamond fit. When that hope fails, 3N is likely to fail by several tricks.

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Apparently Pass is better. Running a simulation with your constraints (opener has 20 to 22 HCP's and at least a 4-card major) there's a 27% chance of game in NT. I had run a simulation with my own agreements (opener could have 20-21 and maybe 4 spades, not 5, but surely not 5 or 4 hearts); in that case the percentage was 25% for 3NT.

 

If you want to risk game 5D seems better (33%).

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MO _P = 10, 3N (or whatever) = 9.

Vulnerable, at teams, it's close but going on is betting on a diamond fit. When that hope fails, 3N is likely to fail by several tricks.

So, both passing and bidding are excellent (9+) choices?
Yes my guess was that Pass is best (hence it gets 10). I estimated 3N to be close behind. Bbradley obviously thinks I'm wrong in thinking they are close and Hanoi5's simulation seems to reinforce that conclusion.

 

On reflection I think you should also consider investigating the possibility of a Moysian fit i.e

_P =10, 4 whatever = 9, Settle for 3N = 8.

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Pass and not close sounds right to me.

 

What if you're not playing Puppet? That makes a REALLY interesting question. Over 1NT with a weak 3-3-6-1 Stayman is still a really big winner; I wouldn't be surprised if this is the right time for a 4-3 fit even over 2NT. I'd gamble on it (and apparently land in 3M on the actual cards.)

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