I am almost in lockstep with Ken here, but not quite.
2NT = Definitely Minors.
X = Extras. Maybe 16/17/18. At the time the double was made, it could be more. But the ultimate pass of 3
limits the hand to roughly 17.
XX = Puzzling. Very! "You pick" is my best guess.
P = Waiting. No descriptive bid. Probably a "thank goodness I don't have to bid" pass.
3
= Lowest of promised suits. "Pass or correct" still applies.
3
= Four
. But could be very well be five. With five and moderate extras (better than complete trash), he bids them immediately.
3
= Preference. Two cards only. With three
and weak, responder bids 2
at once. With three
and a limit raise, some flavor of Drury. Since 3
could show 5=5 majors, this makes it far more likely that responder is 2=2 in the majors and very weak.
So my "vision" of the hand is as follows:Declarer:5=4 (22)(13) with 16-18 HCP (Edit: Another possible inference; declarer is very likely short in
, else he allows the bidding to go 'round to partner to
whack it!)
Responder:2=2 (54)(36) weak. Minimum. 6-7 HCP
Overcaller:(12) 5=5 around 10 HCP
Advancer:(25)(34) 3=3 around 6-7 HCP
So I think it's clear that declarer has extras, and is likely 5=4 or 5=5 in the majors. Responder is very weak, with 2=2 majors. Overcaller has his 5=5 minors. Advancer has a long (5 cards) major with equal length minors.
Ken's penultimate paragraph is spot on, so I will quote it here:
"
After two passes E opens 1 , W is not doubling with that hand, N just barely has a 1NT bid, E has a 2NT bid, I can imagine S thinking 3 over 2NT might suggest more shape and less strength so he doubles, W has a good had so he redoubles, N is sorry he ever opened his mouth at all and passes, E says fine, 3 , S shows his hearts, W has done his bit and passes, N corrects to spades, nobody has anything more to say. + Attachments and other options