[uva72uva72]

My link

Matchpoints, ACBL robot individual

Chalk this one up to my stupidity. I guess I just didn't expect a decent 6-card ♦ suit and a 9 count for North's 1NT. I remember North having 5HCP bailouts for the bid. And not anticipating the long ♦, I didn't think to pull the double - I actually thought North had to have good defense on this auction. I do think that 5-10 HCP is too broad a range for a 1NT response; and given North's fondness for bidding 3-card suits, it shouldn't be a hardship to reserve this bid for a constructive response (8-10 is the range my partners and I use).

[Stephen Tu]

I've noticed that GIB's range and priority for 1nt after 1M-x-p-? seems rather screwed up. Traditionally it's a stronger 8-10ish range, but it likes to do it on much weaker hands also even when having an alternative of making a suit bid. This makes it hard to proceed later. They need to adjust this. Actual hand 3d should be considered IMO.