[blml] When to late

[David Grabiner]

From: "Sven Pran" <svenpran at online.no>

>> On Behalf Of David Grabiner
> ...........
>> > On the contrary if late discoveries make it likely or even probable
>> > that a partnership has created UI using some sort of concealed
>> > partnership understanding I see every reason to try an accusation
>> > of a Law 16A2 violation on such basis within the correction period.
>>
>> It doesn't need to be a concealed partnership understanding, just
>> something which might reasonably not have been discovered at the
>> table.  For example:

I haven't given any specific hands because I do not have an example; the 
purpose of this post was to illustrate a theoretical point, which is that UI 
might not be discovered until the correction period because players do not 
always look at the hands in detail when they do not suspect UI.

>> W   N   E   S
>> 1C  P   1H  1S
>> 2H  3S  4H  4S
>> X
>>
>> West, who has only three hearts, forgot that E-W were playing support
>> doubles.  East explains that 2H promises four (in response to a
>> question, or because the raise promising four is alertable), giving
>> UI to West.  The UI suggests doubling over bidding 5H or making a
>> forcing pass which East could convert to 5H.  South claims 4Sx down
>> two before the play is finished, so he doesn't discover the heart
>> position.  Only when the hand records come out does South see that
>> West's hand doesn't correspond to East's explanation, and that he
>> might have been damaged because 5H could go down.
>>
>> E-W may not have done anything wrong, but South needs to have the
>> right to claim damage from UI.
>
> Excuse me, but what damage can South claim?

> Would West not have doubled if he had not have the UI that he should have
> four hearts?

This is the possible damage.  The UI is that East's calls will be based on 
an incorrect assumption about West's hand.  If West is 3=1=4=5 with good 
clubs, both double and forcing pass could be LAs for a West who has only 
shown three-card support.  However, West knows that East will expect 
four-card support, and may compete to 5H expecting 4=1=3=5 opposite, which 
would be a typical forcing pass for a West who has shown four-card support. 
Given the UI, if 5H is the right contract, East will probably bid it even if 
West doubles.