pran, on 2015-April-06, 01:54, said:
A general ban on psyches is of course not according to Law.
But Law 40 gives a club the powers to ban psyches on artificial calls (L40B2d) and to ban psyches on natural calls repeated so frequent that they become part of implied partnership understandings (L40C).
As a rule of the thumb I would suggest that once or possibly twice a year should be the limit.
blackshoe, on 2015-April-06, 07:41, said:
I do not think 40C gives a club (or any other TO or RA) the right to ban psychs on natural calls. What 40C says is that repeated violations of disclosure requirements (in this case of an implicit understanding) may be penalized. That, to me, implies procedural penalties. Of course if the implicit understanding is otherwise illegal, that's another story — and a different law (40B5).
I also think that the laws do not define "frequent". My dictionary does: "occurring or done on many occasions, in many cases, or in quick succession". "Many" means "a large number of:" Two is not a large number. Neither is three. I understand the human desire to attach numbers here, but that ain't the way it should work. It's a judgment call.
Law 80B2f said:
The Tournament Organizer’s powers and duties include:
to announce regulations supplementary to, but not in conflict with, these Laws.
This clearly include regulations supplementary to those issued by the Regulating Authority as in:
Law 40B2d said:
The Regulating Authority may restrict the use of psychic artificial calls.
Now we have
Law 40A3 said:
A player may make any call or play without prior announcement provided that such call or play is not based on an undisclosed partnership understanding (see Law 40C1).
and
Law 40C1 said:
A player may deviate from his side’s announced understandings always provided that his partner has no more reason to be aware of the deviation than have the opponents. Repeated deviations lead to implicit understandings which then form part of the partnership’s methods and must be disclosed in accordance with the regulations governing disclosure of system.[...]
which implies that unless the partner has no more reason than the opponents to be aware of the deviation it is not acceptable as a deviation (i.e. psyche) but must be treated as a concealed partnership understanding. (And if this implicit and concealed understanding is such as to make the call artificial then it can of course also be subject to the restriction in L40B2d.)
Note that the word "frequent" in this context is only relevant as one of several possible reasons for partner to be more aware of the deviation than are the opponents.