North should respond:
P: lacking a first or second-round diamond control
5NT: with the guarded DK, allowing the hand to be played in 6NT from the right side
6D: with the DA, and
6S: with a singleton diamond.
Fixed typo, hand was missing cA and I managed to mistype the bidding too!
Sorry to misattribute a hand provided by a winner of 2 Bermuda Bowls, 15 NABCs, 3 USBCs :)
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