Problem 09

K J 6 5
A 8 6 5
A 4
K J 7
N
W E
S
A Q 8 7 4 3
K 7
J 7
A 10 6
Vuln None
Dealer South
6
by S
Lead: K

You have bid unopposed to 6. You take the first trick with A and lead to A. Both opponents follow. Plan the remaining play to guarantee twelve tricks.