When this hand came up in a national championship, here are three natural auctions that ensued.
Auction 2 :
Auction 3 :
3D 4D (rkc)
4H 4S (q ask)
The second auction (at my table) went off the rails in the ambiguity between the attempt at showing extra values and lack of a club control in the right hand.
But both the other two auctions involved one hand bidding a slam on their own once partner showed 5-5 in the red suits. Fair enough, for when we start giving opener a hand with ten red cards, slam usually has reasonable play and is often cold.
Could South's assessment change if North bid a slow 3D ?
What would be North's choice with a hand like
Or a hand like
I prefer a 3S bid on the first hand above and 3NT on the second but is that universal ?