Posted 2015-July-27, 10:42
I would bet that this is neither non-standard (though minority) nor Alertable. I'm quite certain the negative inference about the 1M hands is not Alertable, given the strength the ACBL has put into "negative inferences are not Alertable". There are many, many who play "bypass a 4cM to set a game force in a minor, we can find out about it later"; and there's nothing wrong or "unnatural" (GCC definition) about responding in a 3cm.
If I decided to do this (which I wouldn't, I don't like the style, even 1♦-2♦ could have a 4cM), I would just say "I have an aceless 3333 13-count. Even if we have a 4-4 heart fit, I want to play in 3NT. So, best lie." (Okay, with all the kings, I'd want to bid whichever NT shows 13-15, but I hate that bid (especially if it's 3NT), and maybe I'd decide not to this time).
Montreal Relay, at least the way they play it here, is 1♣ "could be short", as they'll bid it with 4342 and it's passable. Some will bid it with 4441, too. 1♣-1♦ "deny a 5-card major" (and a few other things) is definitely Alertable. I'd tend to Alert the 1M responses as well; not so sure of the exact requirement for it. I'd also Alert 1♦ "minimum 5 (or 4=4=4=1, as appropriate)", but not 100% sure of that (it's just that there's no space on the card for 5+).
Putting the two together, though: if 2♣ was a GF *diamond raise* (which it could be if 1♦ promises 5), then it's Alertable. If it showed clubs, I don't think so.
[Edit after seeing Vampyr: Yes, if it's artificial GF, then it's Alertable again. But if he chose to bid his 3333 with a 2/1 in a "natural" 3-card suit, then it's a deviation.]
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