blackshoe, on 2011-March-13, 15:47, said:
There is a requirement, iirc, to disclose relevant information from calls not made (for example, in the case of a "full set" of super-accepts) so I suppose that full disclosure in answer to "what's 3♥?" should include the meaning of 2NT and any other super-accept. OTOH, I would be very surprised if more than a very few players actually did that. I would expect a lot of resistance to "all that wasting time". Maybe, as suggested in another thread, we should rule MI when this is not done, and let the cards fall where they may, but I'm not so sure that would have the desired effect.
bluejak, on 2011-March-13, 16:03, said:
I am sure that all pairs have holes in their system. Just because the system is complicated is no reason to treat it differently.
But I believe that what matters is whether E/W know they have a hole in their system. If they did know it before this hand came up, then they have an implicit agreement that 3♥ shows three hearts, but because of a known hole in the system it might not be, and that is disclosable. If they do not realise the hole or the specific hands not covered they have no agreement so nothing to disclose.
If E/W had been playing a relatively simple system such that N/S could reasonably know the meanings of all alternative calls, then N/S would have had as much informstion as East and West about the E/W methods and hence would have as much chance to detect any "unbiddable" hands in the E/W methods.
But if, as here, E/W play are playing an unusual method and all they tell N/S is that 3
♥ showed 3+ hearts, then N/S are entitled to assume that E/W have agreed to make particular alternative calls on all hands with 0-2 hearts.
In the circumstances, a more accurate explanation of the 3
♥ bid might be "natural, invitational, usually 3+ hearts". West may not have been aware of the system hole, but East clearly was. Should East have corrected West's explanation by, for example, adding the words "in principle"?