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The explanation for 2S indicates that GIB knows it could be a simple preference with a doubleton. So why the jump to 4S?
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Ill-advised jump to game after preference
#1
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Posted 2012-October-11, 06:52
Revised Bridge Personality: 44 43 33 44
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#2
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Posted 2012-October-11, 08:35
daveharty, on 2012-October-11, 06:52, said:
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The explanation for 2S indicates that GIB knows it could be a simple preference with a doubleton. So why the jump to 4S?
The explanation for 2S indicates that GIB knows it could be a simple preference with a doubleton. So why the jump to 4S?
I'm guessing it doesn't know how to check for a club stopper, and assumed you didn't have one based on the double (not that the assumption is correct).
Bridge Personality: 44 44 43 34
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#3
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Posted 2012-October-11, 10:14
As North, I might assume South doesn't have a club stopper due to his failure to bid NT after 2♦, not based on the double. Doesn't 2♠ say "based on what I've heard, we belong in spades"? After that, North simply set the level based on what he knew of the combined total points of the partnership. But, none of the 16 Souths who played this hand both made the negative double and later bid NT, as I would have done, so maybe I'm confused.
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Posted 2012-October-11, 12:28
Bbradley62, on 2012-October-11, 10:14, said:
As North, I might assume South doesn't have a club stopper due to his failure to bid NT after 2♦, not based on the double. Doesn't 2♠ say "based on what I've heard, we belong in spades"? After that, North simply set the level based on what he knew of the combined total points of the partnership. But, none of the 16 Souths who played this hand both made the negative double and later bid NT, as I would have done, so maybe I'm confused.
2nt typically shows a stronger hand, ~10-12. South only has a 9 count. There should be tighter bounds on 2s (2s, 4h, not 2+s, 4+H), and 8-9 pts, not 9-12 total points IMO.
North clearly should be bidding 3c if he wants to explore game. But I think there is a bug there, in my home version of GIB it thinks it needs 4+ hearts to bid 3c which is of course impossible; 2d denies 4+ hearts already.
Also 2d by opener should have an upper bound; 12-16 or 12-17 total points maybe? Plus be 3- hearts.
#5
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Posted 2012-October-11, 18:42
Stephen Tu, on 2012-October-11, 12:28, said:
2nt typically shows a stronger hand, ~10-12. South only has a 9 count. There should be tighter bounds on 2s (2s, 4h, not 2+s, 4+H), and 8-9 pts, not 9-12 total points IMO.
North clearly should be bidding 3c if he wants to explore game. But I think there is a bug there, in my home version of GIB it thinks it needs 4+ hearts to bid 3c which is of course impossible; 2d denies 4+ hearts already.
Also 2d by opener should have an upper bound; 12-16 or 12-17 total points maybe? Plus be 3- hearts.
North clearly should be bidding 3c if he wants to explore game. But I think there is a bug there, in my home version of GIB it thinks it needs 4+ hearts to bid 3c which is of course impossible; 2d denies 4+ hearts already.
Also 2d by opener should have an upper bound; 12-16 or 12-17 total points maybe? Plus be 3- hearts.
But taking account of positional- South's hand is worth 10+, double cover in clubs.
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