MrAce, on 2016-September-17, 19:56, said:
What would a score of 2 NT+1=150 worth of?
Let's see:
3NT= (400, 24 players), 89.25 %.
2NT+1 (150, 0 players), ~ 77 %.
2NT= (120, 0 players), ~ 77 %.
2
♣+1 (110, 2 players), 76.17 %.
3NT-1 (-50, 55 players), 48.60 %.
1
♠W!= (-80, 4 players), 21.03 %
3NT-2 (-100, 12 players), 13.08 %
1
♠W!+1 (-110, 4 players), 5.14 %
and others in between.
I got your point, it's a good score particularly at MPs and much less risk.
Without interference one would normally reach 2NT [edited] with this hand. After the interference GIB doesn't permit this. Neither 3
♣. Here's how the
♣ contracts were reached. I don't think we want to recommend these:
(p) p! (1
♦) p; (1
♥) p! (1
♠) p; (p) 2
♣! (p) p; (p),
(p) p! (1
♦) p; (1
♥) X! (1
♠) 3
♣; (p) p (p).
Also interesting: If NS pass all the way, EW reach 1
♠ because East passes West's 1
♠ rebid. I can understand this but I know people who would send East to the moon for it.