jh51, on 2011-June-03, 13:15, said:
I must confess that I was the West who took advantage of the vulerability to make an outrageous 2
♠ call. (I don't show the hand, but it was made on a 5 card suit and 3 HCP.) NS was a weak pair who clearly misbid to end up in 3NT. North overcalled 2NT, which clearly undervalues her hand.
I am curious as to how the folks on BBO would have bid this as NS after my call. I would assume one would start off with a take-out double, but what then?
Without great agreements N/S should still find slam as even a not great auction of:
P-P-2
♠-3nt
P-4nt-P-6nt
would be possible (the 3nt is an underbid, but a 4nt quantitative with 11 HCP, 2 T, and the A of spades stopper seems warranted even over a "normal" 3nt).
I think the auction of:
P-P-2
♠-X
P-2nt-P-3nt
P-4nt/6nt-P-6nt/P
would work. Over the X I'd play Lebensohl and for me as the S hand I'd want to bid 3nt but go through Lebensohl to show a spade stopper (direct denies). Normally the t/o doubler should bid 3
♣ over 2nt, but here it is a paradox response of 3nt which the Leb bidder can now raise to reveal that they weren't making a weakness bid, and now the small nt slam is easily found.
If you aren't playing Leb then over the X if responder bids 2nt doubler bids 4nt and you end up in 6 and if responder bids 3nt you raise to 6.