West North East South
- - - Pass
Pass 1♦ 2♣ 2♦!
Pass 3♣! Pass 3NT
Pass Pass Pass
To be fair in my auction, I had DBL availabe to promise ♥'s, or maybe 2♦ promised ♥'s, these transfer advances mess me up. But anyway, the point isn't our auction, it failed to find the slam anyway, the point is how should it be bid after the 2♣ overcall (clearly if South bids anything, game at least will be reached). Also clearly, if South passes, north's reopening has to be more aggressive than a tame 2♦. Something like 3♣ or 3♦ would be called for.
Ben

Help

My partner and I reached 3NT after WEST overcalled 2♣, and when the first clubs was lead and ducked to the ♣K rattled off 13 tricks. We spent time discussing how we might have gotten to 6NT. We were depressed about out lack of bidding skill on this one.
Our opponents, however faired even worse. Their auction was
Pass-Pass-1♦-2♣
Pass-Pass-2♦-All Pass