nige1, on 2013-March-21, 07:26, said:
- You hold ♠ - ♥ K Q x x ♦ A x x x ♣ A x x x x and partner partner opens 2♦ showing a weak 5-6 card major.. Some partnerships agree to bid 2♠ (pass/correct) on such hands. The opposing side are certain to have more ♠ than your side. Does the EBU consder 2♠ to be a natural and unalertable?
- At favourable vulnerability, you hold ♠ x x x x ♥ x x x x ♦ x ♣ x x x x. Partner opens a weak no-trump and RHO doubles. Some partnerships agree to bid 2♦ on such hands, intending to redouble if opponents double. Of course they are delighted to play undoubled in 2♦. Does the EBU consider 2♦ to be a natural and unalertable?
Whatever its decision, does the EBU really believe that we simple-minded players will arrive at the same conclusion?
Neither of them is natural and unalertable, but that is not the question under discussion. The question is which doubles of those bids should be alertable, and for those purposes the EBU treats doubles of these may-or-may-not-have bids the same as doubles of natural bids.