West North East South
Pass Pass 1♣ 1♠
Dbl 3♠ Pass Pass
Dbl Pass Pass Pass
3S is a preemptive raise.
I was East and I was confused from the bidding
My first doubt was immediately if bid or pass over 3S:
If I doubled, what would show ?
Should it show extras ?
Or could be also a minimum hand with shortness (takeout) ?
I chose to pass, assuming that Dbl would show extras: but this creates a problem in the interpretation of my pard's double.
Initilally I thought pard's double was takeout, but after some quick thinking, I thought "What is pard supposed to bid if he REALLY wants to double for penalty?", say holding
a hand that does not want to bid 3NT and has no other prospective game on ?
So the questions are
Question a.
immediately over 3S, by east, what does double show ? Extras or just shape ?
The shape-showing X clears the smoke, because now pard can leave the double in if he is penalty oriented; but it becomes harder to differentiate strength
Question b.
What does west double show after east passed ?
If it is takeout, what should west bid if he wants to double but cannot bid 3NT ?
If it is penalty, what should he bid if he has a t/o hand ?

Help
