[AL78]

I think I underbid this one:

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12 tricks cold thanks to perfectly matched hands with no wastage. I did briefly consider splintering with 4♣, before I decided that my hand isn't good enough to force to game if partner has a weak responding hand. It would have worked well here, as partner would then immediately see the zero wastage and her HCP are working, and would likely drive to slam.

[sfi]

If you were South, yes you underbid it. You would happily accept game without either king, and consider accepting game without either ace. So 4H is, shall we say, conservative.

But you weren't South. North's hand isn't worth a game force opposite a simple response (imagine South without either ace), so 3H is fine. Partner already knows it's probably not a balanced hand since you would have already opened a strong NT. So you'll be two- or three-suited with shortage most of the time (unless 2452). The point of that is you don't need to strain to show the shortage because partner can go investigating with slam aspirations.

[mcphee]

South should be bidding 3!S after they hear partners 3!H. After that it looks rather easy to reach to find 6. The S player dropped the ball.

[Douglas43]

 mcphee, on 2020-June-24, 01:18, said:

South should be bidding 3!S after they hear partners 3!H. After that it looks rather easy to reach to find 6. The S player dropped the ball.

Agree. North did plenty.

[P_Marlowe]

Hi,

3H is enough.

Showes 16-18, South has 15HCP, controls, this means South knowes,
the partnership has 31-33 between them. You may still end up in game,
but raising 3H to 4H is certainly not enough.

Not bidding the slam is not terrible, but the auction should at least include
a slam investigating move.

If your first cue is honor based, 3S would work beautiful, since North
sees the Ace, if it is just a cue, North did stretch, so wont go beyond
4H, so it is on South to do this.

With kind regards
Marlowe