ArtK78, on 2011-October-13, 09:27, said:
I did not say that your 3♣ bid promised spade shortage. You stated that it showed a minimum with a shortage somewhere, and I stated that partner had a reasonable expectation that your shortage was in spades. I also stated that it didn't matter how many spades you had for purposes of playing in a heart contract.
If the scoring was not matchpoints (or board-a-match, which is another form of matchpoints), why would you ever consider bidding 7NT? Avoiding an opening ruff? Hardly likely.
As far as partner having a long running suit, that is certainly possible, but it is not necessary. AKxxxxx is certainly not a long "running" suit. Yet partner has a near 100% expectation of making 7♥ if you have the AK of hearts. Partner could also have AKQxxx with another heart, and 7♥ is still a virtual certainly, but 7NT is not very good.
If the scoring was not matchpoints (or board-a-match, which is another form of matchpoints), why would you ever consider bidding 7NT? Avoiding an opening ruff? Hardly likely.
As far as partner having a long running suit, that is certainly possible, but it is not necessary. AKxxxxx is certainly not a long "running" suit. Yet partner has a near 100% expectation of making 7♥ if you have the AK of hearts. Partner could also have AKQxxx with another heart, and 7♥ is still a virtual certainly, but 7NT is not very good.
Thanks.
Let's say it was MP, hopefully I would never bid 7N at IMPS. I was probably more influenced by the fact that this was a bidding contest rather than scoring.

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