Rebidding 4-card suit

#1 Bbradley62

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Posted 2011-September-18, 21:33

I really hate this 2♥ bid.

#2 georgi

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Posted 2011-September-19, 04:35

It's certain bug. It's fixed, but it will be present in next release.
The bug refers to all auctions like:
1♣ - 1♥
1NT - 2♥

1♣ - 1♦
1NT - 2♦

1♥ - 1♠
1NT - 2♠
etc.

in general the "retreat from notrump" cases

#3 cloa513

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Posted 2011-September-19, 04:59

georgi, on 2011-September-19, 04:35, said:

Why does GIB think it needs to retreat from NT, its got more than a full 6 HCP without valuing its hand in TP?

#4 georgi

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Posted 2011-September-19, 06:43

it's not auto-retreat situation, but in cases the hand is treated as not good for pass on 1NT, it will be definitely not 4th in the suit GIB retreats.

The expected layout seems like 5+ and of course unbalanced.

#5 xxhong

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Joined: 2010-November-11

Posted 2011-September-19, 11:11

5+ may not be good enough, because gib itself frequently rebids 1NT with singletons in responder's suit. So a better treatment should be 6+ or at least good 5+. Also, gib should be set to pass NT frequently with a singleton or void in opener's suit.

georgi, on 2011-September-19, 06:43, said:

#6 barmar

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Posted 2011-September-19, 22:34

GIB tends to run from NT when it has a singleton. It even does this when it's in partner's known 5-card suit.

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