mikestar13, on 2011-November-22, 23:06, said:
Free, on 2011-November-23, 04:58, said:
This exchange is odd, IMO.
Mike from ACBL would like the "any defense rule" not to apply to natural openings. It doesn't. Mid Chart defenses are allowed against artificial openings in GCC events. As of January, what most of us understand to be a natural system will have its 1C opening defined as natural, since there is only one instance of many where 1C might have only 2 cards in the suit.
This change of characterization was deemed necessary, apparently, because a very few pairs found a loophole to allow Mid Chart defenses against short club in GCC events. If we can live with not being able to use CRASH against 1NT in GCC, I suppose others can live with the short club thing. It really isn't a big deal.