First of all: After playing the A
♥ North sees 4 Hearts at the table, 5 in his hand so West can hold 4 at most. After South follows suit West can't have more than 3. So after playing the A
♥ North should call the TD, because he was missinformed.
South sees 3
♥ in his hand 4 at the table and 5 should be in Wests hand leaving 2 with North. But why did East stay in 2NTX if they have a 9card fit in
♥? South should wonder why partner leads opponents suit playing NT developing tricks for west by playing the ace.
So lets take a look at EW's convention card, if they don't have one, we have to assume MI and not missbid. Easts not correcting the dbled NT bid into
♥ clearly shows that he knows his partner holds the minors. I don't think this was intentional as many players think that UNT allways shows the minors.
Further reading to UNT is
here.
After loosing their
♦ trick (by north playing
♦), NS should still get:
3
♥, 2
♣ and 4
♠ tricks =>down 4.
After loosing the 2nd round of
♦, and seeing that West
♣ are now deleloped.
NS can still get 3
♥, 2
♣ and 2
♠ tricks => down 2.
Seems to me that NS stopped thinking at all.
So it comes down to this, i will need explanations from N and S why they were continuing to play
♦ allthough it is obvious that this is wrong. And if they are beginner or novice and have a good explanation for playing
♦ again and again, then i will adjust the score to 3
♣= (haven't run a full analysis).