[blml] ABF seminar - Law 27C

[Jerry Fusselman]

Steve Willner:
> > From: <gesta at tiscali.co.uk>
> > "In drawing his Venn diagrmans, I assume Laurie Kelso began
> > with a fairly small circle for the information 'I have 0-12 points',
> > ... Then he drew a larger circle around
> > it for the information 'I have 5-9 points',
>
> Interesting.  I would have drawn the circles in the opposite sizes.  As
> (I think) Eric remarked, maybe Venn diagrams are not the best approach
> to explaining the effect of this new Law.
>
> Perhaps it's easier to think of actual bridge hands.  One could ask, "Is
> there any hand the player could hold that would make the corrected bid
> but not the insufficient bid?"  If the answer is "yes," don't allow the
> penalty-free correction.  (I actually wrote that wrong-way-round the
> first time, which tells you something either about the new Law or about
> me.  To be fair, it's now after dinner, and I did have some wine with.)
>
> Of course if you literally mean "any hand whatsoever, even one," the
> penalty-free correction will almost never be allowed.  If, on the
> contrary, you mean something looser than that, defining it will be far
> from easy.
>
> It will be interesting to see what the DSC comes up with.
>

Agreed.

About the Venn diagrams, there is perfect split by whether you are in
the DSC or not.  Everyone outside the DSC who wrote on this issue
thinks of the points in the Venn diagrams as hands.  But both
respondents who are DSC members think of a bigger circle as "more
information" instead of more hands.  So the DSC Venn diagrams are
exactly backwards from everyone else's.

Jerry Fusselman