As South, nobody vulnerable, you hold:
KQ108
A109
42
KJ53.
RHO deals and opens 1. And you?
Pass
Double
1
1NT
2
2
Other
Partner takes out the double to 2 as shown. And now?
Pass
2
2NT
3
4
Other
Partner raises to 4 and a diamond is led:
East takes 2 high diamonds and shifts to the 10 as shown:
Win and play the KQ.
Win and play K and then A.
Win and play something other than spades.
Other
It turns out that West (LHO) started with J9xx. So, you have a spade loser. There is no throw-in play (if you play 4 rounds of trump, the defense can run diamonds). Who will you play for the Q?
West
East