NORTH 973 JT873 862 AK J652 9 KQ754 Q83 KT84 542 JT3 765   AQ AKQ6 A9 JT942

Dealer: East    Vul: NS   IMP Scoring West Pass Pass Pass North 3 1 3N East Pass Pass Pass South 2N 3 2 Pass

West began with the K.
Declarer took stock. At other tables, at matchpoint scoring, most would play in hearts.
It looked like taking 12 tricks in hearts would be a standard result.
There would be few pairs, if any, playing in NT. Taking 12 tricks seemed essential.

The first diamond was won in hand.
Two top hearts were cashed.
Two top clubs were cashed.
When the Q didn't fall, exiting with the J seemed best.
It was all or nothing. Either diamond would be continued or they wouldn't be.
Diamonds were continued and there were 4 diamonds and the Q to set the contract, down one.

"Why didn't you just make your contract?" North offered.
"Huh? Can't you see it? I needed to take 12 tricks there."
"It's IMP scoring tonight."
"AAAAAAAIIIIIIEEEEEEEEAAAAAAIIIII!!!!" South groaned.