West	North	East	South
-	3♣	P	P
X	P	3NT	P
P	P

Lead: ♥ 6

This hand comes from the French National Teams 2011.

Bidding: Sitting North, Combescure preempted 3♣ on a tram ticket (vulnerable)!

Knowing his opponent, Bompis had to take the risk of trying 3NT after partner doubled. If 3NT were doubled he can still rescue to 4♥.

Play: This hand is a case for carefully counting the hands.

From the lead, declarer knows South had no clubs to start with, hence 8 clubs in North.

The ♥8 being the highest heart allowed to North (by virtue of the rule of 11), declarer  is planning to make:

4♠ (South being favorite to hold the long spades to the Jack).
3♥.
1♣.

Once you have seen two diamond discards (the 4 and the 8) you have a complete count of the hands.

With 8 tricks in the pocket, and ♦AQJ sitting at your left, you just have to find a way to end-play South, so that he'll deliver you the ♦K trick gracefully.

In the closed room, North found the "normal" 4♣ opening bid. EW reached 5♥ doubled. 14 IMPs for Bompis - Quantin.