[blml] Profit from irregularites

[Sven Pran]

> On Behalf Of Jean-Pierre Rocafort
> Sven Pran a écrit :
> >>On Behalf Of Tim West-Meads
> >>Sven wrote:
> >>
> >>>Can someone please stick to the facts and explain in clear,
> >>>understandable language why an opening bid out of turn that has been
> >>>made legal (accepted by the offender's LHO) is to be treated any
> >>>different from the same opening bid in the same position except that
> >>>this time the bid is made in turn?
> >>
> >>Because dealer has not yet called.  The dealer and (vulnerability)
> >>remain as on the board even if another player makes the first "treated
> >>as legal" bid.
> >
> >
> > And exactly what makes an opening bid by someone who mistakenly thinks
> he is
> > the dealer any different from the same opening bid by the same player in
> the
> > same position when he really is the dealer?
> >
> > Unless you establish a real difference between these two opening bids
> your
> > declared agreements on your subsequent calls will necessarily apply
> equally
> > in both situations.
> 
> following an opening bid in turn rho has a choice of n possible
> attitudes: n legal calls. following the same opening bid out of turn, he
> has n+1 possible attitudes, with the additionnal option not to accept
> the bid out of turn. the difference makes that his optimal strategy to
> assign some meaning to different calls may be different.

True, but without "prior announcement" (Law 40A) such impact of accepting or
not accepting an opening call out of turn on the partnership agreements is
illegal.

There is no way "general bridge knowledge and experience" can be claimed as
foundation for applying different agreements after a particular opening call
depending on whether that opening call originally was in turn or out of turn
and accepted.

There are of course OBOOT situations where a player gets the opportunity to
make a call which he otherwise would not be able to make and some "general"
inference to be drawn from the fact that he chose this opportunity, but the
inference from such choices cannot be extended to change the meaning of his
call from what has been previously announced.

Sven