awm, on Mar 20 2008, 08:23 AM, said:
You open 1
♦ in third seat and partner responds 1
♠. 2/1, 15-17 NTs.
if you face an unpassed partner, it's a clear 2D rebid. 2C is a bid that looks pretty but may lead you landing at wrong slams when partner has some sort of club fit and extra value.
In the real situation, 2C is still a bid that looks pretty but may get you nowhere after
partner's raise to 3C, cause you know this hand is quite misfitted and 3nt doesn't have to be good. 1NT is my second choice, but many nowadays upgrade 14 and open 1NT, so partner may not expect you to rebid 1NT with a pretty good 15 and may pass your 1NT rebid with some pretty good 10 or very bad 11, still even when he has a bad 11 or good 10, 3nt doesn't have to be very good if he has no diamond fit.
That's why 2D is good, it shows your partner the major feature of this hand, also, 2D's range is rather wide, from good 10 to bad 16, so partner can make some educated guess to bid more when he has diamond fit and pass it when he detects misfit. Even if you play 4 card major, this hand is still the best to open 1D IMO.
Another issue is that whether you should open 1NT, I'd open it only when I hold stiff SK
or SA and bad diamonds. like this: A AKxx Jxxxx Kxx. For the real hand, 1NT is a big distortion and may cost you a lot of imps cause you won't be able to show your 5-4 red suits which can be critical for slam or game bidding facing an unpassed partner.
even facing an passed partner, xxx Axx Kxxxx Kx, 6D is cold, 3NT has no play after spade lead and you have no normal gadget to find your D fit if you open 1NT. Although you don't have to find 6D, at least 5D should be bid IMO.
IMO, when you have a choice, you want to avoid rebidding 3 card suit, especially face an unpassed partner, cause he may sometimes take your second suit too seriously, and the damage can rarely be recovered.