deftist, on 2016-December-22, 14:55, said:
I think 1NT opening was standard (maybe 1c was better?). Partner bids Stayman and I was going to respond by 2d, but West intervenes and stole my move
1nt is totally normal if this is in your point range.
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What should I do? Just pass and hope partner will bid again? I really don't want to be defending with 24+ points on our side but felt a bit lost. Is my partner forced to bid again against 2d? Am I forced to rebid after that 2d?
The opponent's bid has relieved you of the responsibility to keep the auction alive. So you can just pass (presumably denying a 4 cd major, but more complicated agreements are possible). doubling 2d presumably would show good diamonds and suggest defending.
Your side does *not* necessarily have 24+ points. Stayman *does not guarantee 8 points*! Partner is allowed to bid stayman on zero points with normal agreements, a very standard maneuver with short clubs, ideally 4=4=5=0 shape, but sometimes also 4=4=4=1, and possiblly even (34)51 type shapes. The idea is when you are weak, it's worth hoping to get to a 2d/2h/2s partial where the club shortness becomes a potential ruffing value and entry to a weak dummy. Whereas passing 1nt may lead to declarer having to always lead away from his own hand.
Many players also play "garbage stayman" allowing responder to bid 2c with a hand weak with both majors, intending to bid 2H (some people also play 2S as weak, with longer spades, e.g. 54xx) if partner bids 2d in response to stayman. This extends the concept to hands without short clubs.
If you pass 2d, partner knows your combined point range a lot better than you do, since your range is limited. You've already shown 15-17, passing 2d didn't change your opening bid. So then this allows partner to pass if he was weak, or keep on bidding if game is possible. If he is worried about diamond stoppers he can try 3d, then with no stopper yourself you can try 4 clubs and either play that or 5 clubs, or partner might bid a strongish 4 cd major and you can try a 4-3 fit. With solid diamond stopper himself partner can just bid some number of notrump.
As for the other one, whenever you have a tossup between 1 level major overcall and takeout double at the 1 level, you should prefer the overcall unless really strong (18/19+). This is because it's really hard to find 5-3 fits otherwise. Partner is almost never going to bid a 3cd suit, and you bidding the 5 cd suit shows a lot stronger hand if you double first. There might be some exceptions where with some 45xx's one might choose an off-shape Michaels call, e.g. with AKJx QJxxx xxx x one might try 1
♦-2
♦ to not lose the spades, as you don't want to takeout double over diamond raises (partner bids clubs)
The other suit(s) might be found later if
- opps raise and it's still low, you can takeout double
- opps raise and partner doubles, responsive