Posted 2019-May-06, 11:01
Rubber bridge, which I have not played for decades, makes bidding these hands difficult because, in the games I used to play and the games I have read about, partnerships have very few agreements, and indeed in some games agreements are limited by the conditions of contest, so even experienced tournament players are not allowed to play all of their gadgets.
In traditional bidding, way back when, the North hand would bid 2H over 1H, which was taken to say nothing other than 'I have a game force hand'.
Over that, South would bid spades, North would preference back to diamonds, and South has an easy 3H cue.
After that a small slam should be reached. Grand isn't bad (it is better than 50%) but the risk-reward is borderline, and in any event I'd have to think a bit more about how the auction might go.
More recently, but still somewhat old-fashioned, North might pass, expecting a reopening by South, who indeed would reopen with 1S. North then cue-bids 2H and off they go.
Moving along chronologically, North might make an off-shape double and South should jump to 2S, since South has a fine playing hand opposite 4 spades. North has a tough time now: a cuebid would presumably agree spades, and the auction becomes unpredictable.
A modern style is for the double of 1H to deny spades. Now, North doubles, South bids 2D, north cuebids and off they go. I think that bidding to 6D is trivial in this method.
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari