Problem 05

K 3
A 4
A 8 7 6 3
8 7 3 2
N
W E
S
A Q J 10 9 5
K 3 2
5 4
A 5
Vuln None
Dealer North
West North East South
1 2 Double
2 Pass Pass 4
End
4
by S
Lead: 10

When East overcalls, you start with a double in case partner wants to convert it to penalties, but West bids 2 and you make the practical bid of 4.

Plan the play.