[blml] Nondisclosure [SEC=UNOFFICIAL]

[Tim West-Meads]

Herman wrote:
> 
> As already stated, I agree with Richard (on this one). Law 40A means 
> you can play anything. Law 40C describes what is done if you have 
> failed to explain suffuciently.

That is close enough to true regarding most natural agreements.

> No-where is it said that a bid disappears if it has not been
> explained.

But there is also L40D.  If the CoC states that only conventions 
disclosed in advance may be played then any convention not so disclosed 
is an illegal agreement.  The bid doesn't necessarily "disappear" but if 
there are stipulated procedures relating to the use of illegal 
conventions those should be applied.  The convention is still illegal 
even if it is trivial, alerted, and correctly explained.

If preparing for an event where "anything goes" a careful player tries 
to consider everything opps might be playing and agrees a default 
framework of defences which will hopefully cater to all eventualities.
OTOH if the event is "conventions must be registered in well advance" 
the careful player considers the conventions that have been registered 
in greater detail and doesn't waste time preparing defences to things 
they know they won't encounter.  My personal view is that international 
trials *should* be of the "anything goes" variety but since that was not 
what the NZ authorities chose it is irrelevant.

Tim