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4 questions - one hand

#21 User is offline   MrAce 

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Posted 2016-September-17, 19:56

 m1cha, on 2016-September-17, 18:53, said:


Just looking at the N and S hands, would I want to be in 3NT? Certainly not. On the other hand, gifts happen. On the whole I learnt to bid more aggressively in the last 6 months, and think I profit from it.


What would a score of 2 NT+1=150 worth of?
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#22 User is offline   m1cha 

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Posted 2016-September-17, 21:10

 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.
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