My partner was Chris Larsen, who I think is one of the best technicians around. When I see him make a play that looks apparently wrong, its usually me that is missing something, and I need to look at it closer. Indeed, the hand deserves a second look:
The bidding (N-S Vul):
East....South....West....North
Pass...Pass.......2♠......Double
3♠......4♣..........Pass......4♦
Pass..4♥...........Pass.....5♣
All Pass
The bidding has always been discussed, and thats not a topic here.
The opening lead is the ♠Q and RHO plays the 3 (standard). Your initial reaction is, "argh, we might have missed a slam". You cash the ♣AK and RHO shows out on the second. That's odd. Now 11 tricks are far from certain.
It looks like LHO has at least 9 and probably 10 black cards. Try to reconstruct the unseen hands and give yourself the best chance here.

Help
