[P_Marlowe]

Hi,

the setup, you are playing with your sons (11 / 12), they switch places after the round.
The system is simple, it resembles the GIB system, the first two rounds of the auction.

Second Bord, IMP, being dealer, all red you hold

♠J753
♥AJT87
♦-
♣KQT9

The auction

1H - (1NT(1)) - 2S - (3D(2))
???

(1) 15-18, a solid citizen
(2) part of the junior national team

As always reason is more important than being right

[mw64ahw]

Assuming, 3♦ is GF it doesn't leave much left for partner, but decent playing strength-so maybe likely a 10-card fit
I'd bid 4♦, given 4♠ looks OK. Now will partner take us to 5♠ over 5♦?

[pescetom]

4♦ looks perfect to me.

[P_Marlowe]

3D was not alerted, ..., it is unclear, if you would get an answer from the solid player,
she would be the client in this partnership, but assume standard agreement set.
But keep in min, that all 4 players though they had something to say, i.e. I am not sure,
that 3D is GF per default.

I would also claim, that most peoble would make the 3D bid.

[akwoo]

I think this is too good for 3S, but I think 4S is enough. I don't want to bid 4D because that sets up a forcing pass, and I think partner will expect more defense in that case. This is particularly true if partner is one of those people who evaluates what to do in forcing pass situations by whether we can make rather than whether we can set.