The moment South opens the bidding with 1C, North should be thinking slam in clubs, surely? And if not slam, then game. But when North starts slowly by bidding 1D, East has the chance of coming in with a spade bid, which could be, and should be, more than just 1S. That might make the bidding for NS a bit more difficult but should not stop North asking for aces or key cards and settling for a small slam in clubs.
Board 23 from Thursday 31/01/19
Dealer S All Vul
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