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Old 10-13-2016, 05:59 AM
amarone is offline
Charter Member
Join Date: Mar 2001
Location: Savannah, GA
Posts: 5,033
Originally Posted by Quartz View Post
As I said, I got flummoxed. My mistake.

Over an opening bid of 2NT I would have bid 3NT, being 1 point short of values for a 4NT bid.
Your spades are worth an extra point. The 10 solidifies the suit and the 5th spade is an extra trick but no extra HCP. Compare the trick-taking potential with the same hand but where the 10S is replaced by the 10C. Clearly your hand is much better, but they have the same number of HCP.

Opposite a 2NT opener I would transfer to 3 spades and then bid 4NT, which is natural. Partner would bid 6NT (or possibly 6H).