[Codo]

So to find out which LAs we have, we have to consider these possibilities.

1. Partner thinks that 3 NT is fine without a heart fit, but now is looking for slam without a club control- but with a diamond control which happens to be a void if you look at your hand- or a singleton if this is allowed.
2. Partner miscounted his hand, woke up and tried to make a slam try instead of just blasting to makes things clearer.
3. Partner mixed some diamonds in his hearts.
4. Partner took 2 NT for the minors and acted accordingly.

Everything quite unlikey, but for all my partners I would bet it is nr. 4...

[RMB1]

 campboy, on 2013-June-01, 02:35, said:

Of course, I posted before Robin mentioned the possibility that 2NT was minors. I've never played that method, so it didn't occur to me as a possibility; I suspect that if I did play it then the auction would be enough to wake me up.

But presumably it would only be the third auction (the 5♦ bid) that wakes you up.

[campboy]

 RMB1, on 2013-June-01, 03:07, said:

But presumably it would only be the third auction (the 5♦ bid) that wakes you up.

Yes, there's no reason to think anything is wrong until the 5♦ bid.

[gnasher]

 campboy, on 2013-June-01, 02:35, said:

Even if you think that there is no hand which will bid 3NT and then 5♦, I think it is more likely that partner has realised he is stronger than he thought than that he has realised all his hearts were actually diamonds.

It's not just that he can't have the strength for a move. It's also that he apparently has no black-suit control, hearts headed by at best the A10, and a mediocre side-suit. And he bid 5♦ rather than 5♥ or 4NT. Jx A109xx - Q109xxx ?

[jallerton]

 RMB1, on 2013-May-31, 04:04, said:

Based loosely on a real hand, but I haven't got the actual hand to hand.

You hold AQx KQJ AKxxx Jx.
You open 2NT showing something like 20-21 or 20-22 and receive UI.
The opponents are silent.

2NT-3♦-?
For players in this competition, it would be usual that 3♦ was a transfer.
What calls are logical alternatives?

2NT-3♦-3♥-3NT-?
For players in this competition, it would be usual that 3NT was NF, choice of game.
What calls are logical alternatives?

2NT-3♦-3♥-3NT-4♥-5♦-?
For players in this competition, it be usual for 5♦ to be undiscussed.
What calls are logical alternatives?

1. 3♥ is the only LA playing standard transfer methods.

2. 4♥ and 4♦.

3. This auction does not really make sense. To assess the logical altrenatives, I ask myself what I would do if playing behind screens. The answer is that I would go back and review the whole auction to check I haven't got an earlier bid wrong. Depending on the situation, this might cause me to wake up to the meaning of 2NT being conventional. Or it might make me recall that over a natural 2NT opening 3♦ was a game forcing transfer , 3♥ showed 3-card support and that 3NT was a slam try with spade shortage (as I play with one partner). Or, if I am confident about the meaning of the auction up to 4♥, I might just assume that partner has found an extra ace!