A 3N. Really close to just giving up with 4S. But since partner will have last train available later (e.g., after 3N-4C-4D-) I will keep hope alive as long as I stay below 4S and don’t bid last train myself.
B 2N. Too strong to pass, and the ratty hearts and double spade stop convince me to go the notrump route.
C 2D seems clear. The hand is too good for 2N, and 3N is far too preemptive (partner may have four spades or may have H AQJxxx), and 1S isn’t close to forcing…and we kind of know it’s likely to go all pass. The question will be next round when I have to decide what to bid over 2H. 2S is what I’ll probably go with, since 2N would show H support, according to the notes.
D 4C. Yuck. At matchpoints, where partner will pass much more freely, I would just double again, but that seems too risky at IMPs. I don’t want to bid a thin 3N when I can’t hold up the A twice, since that could go down lots. Also, they won’t take the push to 4S over that. That leaves Pass or 4C. Since 4C implies a second place to play and thus may get us to +620 in 4H and possibly to +600 in 5C, that seems the way to go.
E. Pass. I’d double at matchpoints. I don’t think we’re getting a number at IMPs, and there is a serious risk that double gives partner a choice between -500 and -790… 3S would be a serious error. It shows close to another full trick, is easily doubled on bad breaks, and will often be raised for extra undertricks, possibly with a ticket.
F 4D. Even if 3D didn’t show enough for game opposite 18-19, I’d still want to bid 4D (if I had a singleton I’d bid 5D). LHO is an unpassed hand. If the auction to me had been P-1D-P-, I could better understand those who want to pass. I can’t see why I want to give LHO room to describe his hand. Certainly I don’t want to give him a comfortable 4D (or 2D) call when he is 5-5 in the majors!
G 2S Partner may be counting on getting another call with a strong shapely hand, so taking a chance on passing can be very costly with Qxx in partner’s suit and only three cards in theirs. This also seems to make a future heart bid artificial, so I can bid 3H next if partner now bids 3D.
H C9 If partner can’t figure out what’s going on, he’s probably not that bright. Meanwhile if I lead the 7 and he has K8xxx, it’s my fault. Yes, this costs when partner has K10xxx (no 8) and dummy is void. But that’s far less likely, since it’s a parlay on partner’s and the opponents’ holdings (and dummy has many ways to hold a singleton club, only way to hold a void, and would have been more likely to preference a major if holding a void…do we really think dummy is 2=3=8=0?)