[blml] When AI confirms UI, are we completely free to act?

[John Probst]

----- Original Message ----- 
From: "Mike Amos" <sarahamos at onetel.net>
To: "Herman De Wael" <herman at hdw.be>; "blml" <blml at rtflb.org>
Sent: Wednesday, January 03, 2007 10:14 AM
Subject: Re: [blml] When AI confirms UI, are we completely free to act?


>
> ----- Original Message ----- 
> From: "Herman De Wael" <herman at hdw.be>
> To: "blml" <blml at rtflb.org>
> Sent: Wednesday, January 03, 2007 9:56 AM
> Subject: [blml] When AI confirms UI, are we completely free to act?
>
>
>> Yesterday, the bidding started:
>> part          me
>> 1Cl   pass   1Sp   pass
>> 1NT   pass   2Cl
>>
>> This was of course check-back, or Roudinesco as we call it.
>> It was partner who had said at the start of the tournament that we
>> would play Roudi, so I was quite surprised to see no alert. This was
>> quickly confirmed by the bidding:
>>
>> part          me
>> 1Cl   pass   1Sp   pass
>> 1NT   pass   2Cl   pass
>> pass
>>
>> RHO then prevented the problem from becoming non-existant by keeping
>> the bidding open:
>>
>> part          me
>> 1Cl   pass   1Sp   pass
>> 1NT   pass   2Cl   pass
>> pass  2Di
>>
>> My first action was simple, but my problems were not over yet:
>>
>> part          me
>> 1Cl   pass   1Sp   pass
>> 1NT   pass   2Cl   pass
>> pass  2Di    pass  pass
>> 3Cl   pass
>>
>> I held 5 spades, 4 hearts and 10 points (2-2 in the minors), and I
>> knew (by UI and AI) that partner believed I had club support, so his
>> clubs were not such that 3Cl would be easy.  Was I allowed to bid 3He?
>>
>> Consider this: suppose partner had duly alerted 2Cl, and then passed
>> it and bid 3Cl. Could I not imagine some 6-card suit with singleton
>> spade? The AI makes it likely that partner forgot, but the UI makes it
>> certain!
>>
>> Just to end the story: clubs were 3-3, so 3Cl made, which scored
>> average because many pairs were in 4He (he had 4 hearts), mostly going
>> down.
>>
>> -- 
>> Herman DE WAEL
>> Antwerpen Belgium
>> http://www.hdw.be
>>
> You have two LAs in my opinion
>
> Imagine this auction behind screens
> Either
> partner knows you are playing checkback and has looked at his hand and
> thought I'll play this one in Two Clubs
> or
> partner has forgotten
>
> Therefore your LAs are Pass (Partner knows what he is doing)
>                                 or 3H   (Partner has forgotten)
>
> Your UI (partner's failure to alert) suggests 3H so you must not choose it
>
> Mike

Think what would you have done if partner had alerted 2 clubs then passed.

He holds something like

J
KJx
Axx
Jxxxxx

and has decided to take a pot.  So, that's the hand you play him for. After 
all he "did" alert 2C didn't he. (and if you say "No" you're cheating. ) 
John
>
>
>
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