blackshoe, on Nov 29 2009, 12:51 PM, said:
It seems clear to me from David's #3 that when N bid 2♠, S alerted (because, probably, he suspected 2♣ was Michaels, and in that case 2♠ is alertable). That, and West's comment, is why, IMO, S asked the meaning of 2♣ before explaining 2♠. Note that at this point, S has not called, and N, under Law 21, would be allowed to change his call if he so desired. IMO he should have called the TD as soon as he heard the explanation of 2♣.
This sounded very sensible to me the first time I read it, but thinking about it from North's perspective he may suddenly feel that he has put himself in a stupid situation.
If he believed, from West's comment, that 2
♣ showed clubs then he should have called the Director at this point or at least asked East what it showed. As two-suited cue bids are not alertable in the ACBL, although 2
♣ is normally Michaels it could have shown the red suits and it is reasonable to ask. As (I believe) a natural 2
♣ is alertable then there is an additional reason to ask.
Now, two calls later, he discovers that East has failed to alert a call that is not alertable. He may now feel pretty silly calling the Director for that, although clearly he should because of West's comment.
If North (and West) are experienced players, then I can imagine finding that North failed to protect his interests (which I believe is more common in the ACBL) and leave the table result to stand, but could see that West may incur a PP.
W N E S
1♣#1
2♣#2 2♠#3 3♥ P
P Dbl P 5♣
P P Dbl P
P P#4
Result:
5♣ dbld -3
NS -800