ATB
Who needs to bid further?
South, already a passed hand, figures that he has shown his strength and shape. If partner wants to go slamming, it's up to him.
North, with this behemoth, loves his hand after the splinter, so Q-bids the ♥ control. The only card he wants to hear about is the
♣A, (or so he said).
Should South bid 5♣, showing 1st round control, or is it North's responsibility to Bid 4NT RKCB?

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