[Antrax]

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Holding two extra trumps, AKQ of trumps and 16 HCP, you'd expect GIB to make some slam move over 3♠. Alas, its system only allows cue bidding aces or bidding RKCB as slam moves, so GIB signs off.
It would be nice to have some bid show extra strength and some slam interest, maybe the currently-idle 3NT?

[Bbradley62]

What does 1♠-2♦-3♠ show?

[barmar]

Bbradley62, on 2014-April-08, 13:17, said:

What does 1♠-2♦-3♠ show?

That shows: Jump rebid -- 21- HCP; strong rebiddable S; 18-22 total points; forcing

North only has 16 points -- those honor doubletons are pretty bad.

[steve2005]

barmar, on 2014-April-08, 14:49, said:

That shows: Jump rebid -- 21- HCP; strong rebiddable S; 18-22 total points; forcing

North only has 16 points -- those honor doubletons are pretty bad.

it has bad doubletons because it has a completely solid 7 card suit. Hand is worth 7.5 QT as a minimum. This hand worth a jump to 3♠! The doubleton honors will likely play well opposite a GF 2/1 and the KT♦ arguably could be valued as AJ, they are like gold as partner probably has a real ♦ suit

Point! Smoints!

That said isn't a good slam, but is worth investigating below 4♠.

The slam you want is 6N played by South if they had less spades and more diamonds or has J♦

[Antrax]

Yeah, if you worry about slam not being hot you can just shift honors in south's hand. I think it's enough to have the ♥A instead of the ♥K and ♦Q to make slam good.