Posted 2016-May-23, 15:26
X and 3NT are both reasonable. If 1D was a normal opener (not the unbalanced one you specified), X would be pretty automatic (partner might want to pass). With the unbalanced convention, it's much closer, because partner is likely to be short in spades and thus less likely to want to pass. I would cross my fingers and X.
The main issue at IMPs is to avoid a disaster. On this hand, that means to at least make your game. Each bid has problems here. If you bid 3NT, you might find partner with something like:
x Axx KQxxx KJx
Now if South shows up with the Ad, you are going set in 3NT when 6D was icy.
On the other hand, if you X, partner may bid 4H, in which case you have a nasty guess. Quite likely you can hold up on the first spade, take the A on the second spade, and make 4H, but a 5-1 H split could doom you. Correcting to 5D won't help much if partner is 1444.
The reason I like X is that it is less unilateral and more flexible. There are two things that could go very wrong with 3nt: (i) you could easily go down and (ii) you might have an easy slam (and no, partner isn't going to bid over 3NT with a hand like the one I showed above).
There are fewer things that could go wrong over X. It's unlikely partner will pass, but I suppose he could have short clubs or even short hearts. If he passes, you are happy enough. If partner bids 3NT, you can raise to 4NT. If partner bids 4C, you can bid 4S to show club support and try for slam. The same is true if partner bids 4D. The only thing that could go wrong is if partner bids 4H, and even there, 4H is probably about as likely to make as 3NT.
What happened on the actual hand?
Scoring is imps.
1D bid is unbalanced with diamonds(1C would be opened with any balanced outside of 1N/2N range)
What is your bid now? And how close?
Note: Im more interested in the point why would you like to make the specific bid - I made a pool on BW as well.