Posted 2007-January-20, 09:44
Let's explore options.
When my partner opens a NT and I have a 4-4-3-2 shape and marginal points I just pass. Even I, however, bid 2C on a 4-4-5-0 piece of trash. So I don't think opener's pass of 4C could ever really be forcing, unless they have unusual Stayman agreements. I realize brothgar said something the same, but I am saying I think almost no one plays 2C as absolutely guaranteeing values. Assuming this is a pick-up, more or less, then pass would not be totally forcing.
However, it seems pass would be: Unless you have the trash hand, please act. If responder has trash and passes it out it's ok. Firstly 4C might make and secondly NS were never going voluntarily past the 2 level anyway.
So opener could pass, as NT openers often do, when the situation is unclear to him. Presumably responder has a better idea of total assets.
Opener didn't pass, he doubled. So:
Conclusion: Double is a strong suggestion to pass, lacking some real reason to do otherwise. Exactly what a pull of the double to 4D might mean I am less sure. Certainly a LOT of shape. I guess 4-6, trying to find the right vulnerable game. I wouldn't expect opener to pass 4D. [I hope to hear if others agree here.] A pull of the X to 5D, imo, must surely be a slam try. If it exists at all as a bid.
At any rate, with the given S hand, pass seems clear cut. Values, no guarantee that NS have a major fit, or that they can find it if they have it, or that it will make if they have it and find it.
Ken