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UI from opponents enquiring

#1 User is offline   mr1303 

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Posted 2010-February-04, 18:52

Scoring: MP


2D (X) 2NT (P)
3D (P) 3S (P)
4S All pass

This hand opens a multi 2D (weak 2 either major or 20-22 balanced). Opponents ask at every opportunity.

2NT is a strongish enquiry, 3D showed a maximum, but partner explained it as showing a minimum hand with spades, 3S was a sign-off.

4S makes 10 tricks. Do you adjust?
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#2 User is offline   blackshoe 

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Posted 2010-February-04, 19:00

I don't know. Was there damage?
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#3 User is offline   jdonn 

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Posted 2010-February-04, 19:07

I'm a little confused. Is the question essentially whether the UI from partner's explanation is the fault of the opponents for asking a lot of unnecessary questions?
Please let me know about any questions or interest or bug reports about GIB.
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#4 User is offline   hotShot 

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Posted 2010-February-05, 01:55

This one will be tough.
Opener has UI that partner misunderstood the bidding, but he has AI that says about the same.
Opener is stronger than an average maximum weak 2. I've seen 1-level openings that where weaker.
I'm not sure that pass is a LA, I would not consider to pass.
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#5 User is offline   Vampyr 

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Posted 2010-February-05, 02:10

hotShot, on Feb 5 2010, 08:55 AM, said:

Opener has UI that partner misunderstood the bidding, but he has AI that says about the same.

Really? What AI?
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#6 User is offline   mjj29 

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Posted 2010-February-05, 02:37

Vampyr, on Feb 5 2010, 03:10 AM, said:

hotShot, on Feb 5 2010, 08:55 AM, said:

Opener has UI that partner misunderstood the bidding, but he has AI that says about the same.

Really? What AI?

The explanation of 3D. AIUI, 2N could have been made with a hand that wanted to play in game opposite a good weak two in _hearts_, so 3S could legitimately be a signoff after 3D. Hence I'd expect pass to be a LA and I think bidding is suggested over passing
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#7 User is offline   hotShot 

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Posted 2010-February-05, 03:07

mjj29, on Feb 5 2010, 09:37 AM, said:

...
2N could have been made with a hand that wanted to play in game opposite a good weak two in _hearts_,
...

I think that is about the meaning of the 2 response in multi.
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#8 User is offline   peachy 

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Posted 2010-February-05, 03:12

After partner issues an invitation, this magnificent maximum (which sme might open on the one level) obviously is going to game. I am disturbed by the fact that opponents asked at every turn. I know they have the legal right to ask, but why did they ask? Just to be a nuisance? Anyway, for adjustment, there has to be damage and there has to be a LA that could be demonstrably suggested by the UI. If a poll were conducted, my guess is that "nobody" passes so Pass should not be a LA, with or without UI.
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#9 User is offline   Codo 

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Posted 2010-February-05, 03:13

I showed my hand and my partner decided to bid just 3. Why shall I overrule him?

Pass is an LA, so if 4 is making, I will turn it back to 3 +1 and find this descission not particular close.
Kind Regards

Roland


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#10 User is offline   nigel_k 

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Posted 2010-February-05, 03:13

Passing 3 ia not a logical alternative if the field is a decent standard.

3 is not a signoff - we are always free to bid one more in this kind of auction with a good maximum. We have a huge hand that was too good to open a weak two in the first place (Kaplan/Rubens 12.75). Our suit can play well opposite a small doubleton and if partner has a stiff spade and game interest opposite hearts only he would/should have bid 2 not 2NT.
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#11 User is offline   Codo 

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Posted 2010-February-05, 03:33

nigel_k, on Feb 5 2010, 06:13 PM, said:

Passing 3 ia not a logical alternative if the field is a decent standard.

3 is not a signoff - we are always free to bid one more in this kind of auction with a good maximum. We have a huge hand that was too good to open a weak two in the first place (Kaplan/Rubens 12.75). Our suit can play well opposite a small doubleton and if partner has a stiff spade and game interest opposite hearts only he would/should have bid 2 not 2NT.

So wait: partner asks you for whatever reason he had. You described your hand quite precisely. (As a maximum weak two in spades). You have no clue how his hand looks like- besides his 2 NT bid- and there is no alternative to overrule partner?
Kind Regards

Roland


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More system is not the answer...
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#12 User is offline   Vampyr 

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Posted 2010-February-05, 04:18

nigel_k, on Feb 5 2010, 10:13 AM, said:

Passing 3 ia not a logical alternative if the field is a decent standard.

3 is not a signoff - we are always free to bid one more in this kind of auction with a good maximum. We have a huge hand that was too good to open a weak two in the first place (Kaplan/Rubens 12.75). Our suit can play well opposite a small doubleton and if partner has a stiff spade and game interest opposite hearts only he would/should have bid 2 not 2NT.

Why are so many people assuming that this is not a normalish maximum in this pair's methods?

As far as the 2 bid is concerned, this will elicit from partner only that he has hearts, not whether he is min or max. This information might, obviously, be relevant.
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#13 User is offline   gwnn 

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Posted 2010-February-05, 04:20

I have sympathy for Nigel's point. After all, partner could have bid 2 if he had no game interest at all in spades.

However, Codo is right, and the two possible alternatives are:
  • partner misunderstood 3D
  • partner was messing with opps enquiring again with his 5 count
Option 2 is entirely possible and it is impractical to be proven otherwise.
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#14 User is offline   Vampyr 

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Posted 2010-February-05, 04:20

mjj29, on Feb 5 2010, 09:37 AM, said:

Vampyr, on Feb 5 2010, 03:10 AM, said:

hotShot, on Feb 5 2010, 08:55 AM, said:

Opener has UI that partner misunderstood the bidding, but he has AI that says about the same.

Really? What AI?

The explanation of 3D.

The explanation of 3 cannot be AI.
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones -- Albert Einstein
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#15 User is offline   helene_t 

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Posted 2010-February-05, 04:30

How can 3 be a sign-off? Is 2NT a controlled psyche or something?

In normal methods, 2NT forces to game opposite any absolute maximum. It is possible that 3 is non-forcing because 3 has some range, but at least it must be invitational.

My guess would be that the explanation of 3 as a sign-off is inaccurate. Not sure if there is an LA to 4. Could a multi be any stronger for this pair?
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#16 User is offline   gwnn 

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Posted 2010-February-05, 04:33

Not necessarily a psyche. It could be that he was interested in game in hearts and was willing to play 3 instead of 2 opposite spades just for the sake of generating some chaos.
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#17 User is offline   nigel_k 

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Posted 2010-February-05, 04:51

Codo, on Feb 5 2010, 09:33 PM, said:

So wait: partner asks you for whatever reason he had. You described your hand quite precisely. (As a maximum weak two in spades). You have no clue how his hand looks like- besides his 2 NT bid- and there is no alternative to overrule partner?

I don't think it is so simple. This is quite different from overruling partner's choice of game, which would obviously be wrong in this sort of situation.

Partner has taken a course of action that commits us to 3 even if I was minimum with spades. If he has a hand where 4 is poor opposite what I have, then we would go down in 3 a lot when I have a minimum. And partner could have avoided that by just bidding 2.

After 2 there may not be a way to find out if opener is minimum or maximum, but a hand that strongly prefers hearts to spades will expect that partner usually has spades so will prefer to sometimes get to the wrong level in hearts in order to avoid getting to the wrong level in spades. If you have eg x KQx AKxxx xxxx surely you don't bid 2NT. You just bid 2 expecting a pass and raise hearts if not.

So I think logic dictates that 3 is mildly invitational, though he will have better hearts than spades probably, something like xx AQx Axxx Kxxx. This has good play opposite my rock-crusher but not opposite a more ordinary maximum such as KQJxxx xx Kx xxx.

My hand, when evaluated correctly, is not a normalish maximum two bid in any style except Fantoni-Nunes and they don't play multi.
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#18 User is offline   Codo 

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Posted 2010-February-05, 05:27

Nigel,

no need to discuss the merrits and pros of bidding 4 spade now. Without the UI there is a big chance that this is the winning call. But you cannot convince me that it is a must and that passing is no LA.
Kind Regards

Roland


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#19 User is offline   FrancesHinden 

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Posted 2010-February-05, 07:48

All the replies saying that this isn't a "normal" weak two, it's stronger than many one-bids etc, are missing the point. The player who held this hand clearly considered it to be within range for his multi, or else he would not have opened it 2D.

This seems to be a straight system question: if 2NT took control of the auction, then it's absolutely clear to adjust to 3S+1 (assuming it made 10 tricks). If 2NT forced to game opposite any maximum multi, it's clear not to adjust. If 2NT promised at least invitational values opposite both majors, then it depends what the range of their 2D multi is.
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#20 User is offline   greenender 

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Posted 2010-February-05, 07:58

There is AI that the auction is a bit strange. Partner chose to bid 2NT rather than 3S, which would normally suggest that he would want to be in game opposite a maximum with either major. The TD should explore the actual agreements of the pair, not rely on what he (along with some posters!*) assumes to be the case.

If, as seems likely to be the case, this does not shed much light on what 3S opposite a maximum is supposed to mean, then the TD can allow the AI that the auction is a bit strange to affect his assessment of the logical alternatives (NB it doesn't cause him to conclude that there was no UI). I'm with Roland here, however: the possibility of 2N being intended as a tactical manoeuvre of some sort suggests that there is a strong enough possibility that if responder had explained 3D as a maximum but still bid 3S, then opener would have passed, so pass is a logical alternative.

I think those that argue otherwise are in some danger of trying to justify what they are sure is the winning call, in the face of the UI, rather than observing the dictates of Law 73C and making every effort to take no advantage.

*For example, in my experience the proposition that a 2S response to a Multi does not allow opener to differentiiate between min and max if he has hearts is by no means always correct.
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