A praiseworthy Gib bidding

[lycier]

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=lycier&s=SQ4HAQ8DAK74CAQ53&wn=GIB W&w=SJT87632H7DJ986CJ&nn=GIB N&n=SA5HKJT6532D52CK4&en=GIB E&e=SK9H94DQT3CT98762&d=w&v=e&b=&a=P1H(Major%20suit%20opening%20--%205+%20%21H%3B%2011-21%20HCP%3B%2012-22%20total%20points)P4N(Blackwood%20%5BH%5D%20--%203+%20%21H%3B%2020+%20total%20points)P5S(Two%20or%20five%20key%20cards%3B%20queen%20--%205+%20%21H%3B%2011-21%20HCP%3B%20%21HQ%3B%2012-22%20total%20points)P7N(3+%20%21H%3B%2025+%20HCP)PPP&p=H7H2H4HQHAS2H3H9H8S3HKCTHJD3D4D9HTC6D7S6H6C2S4S8H5DTC3S7SAS9SQSTCKC8C5CJC4C9CQDJCAD8S5C7DAD6D2DQDKSJD5SK]499|350[/hv]

 

Basic robot

After 4nt as RKCB,Gib N answer is 5♠ !

Actually I hace trump Q,why 5♠ ? Usually it should imply extra lengths in trump ♥,I still know Gib N have a K in some side suit at least,so I have sufficient reasons to bid up to 7NT.

If Gib N answer is 5♥,how high for me? What's the reasons of 7NT?

5♠ is praiseworthy.

[georgi]

The reason for 5♠ is that last version v30 contains some "6th sense" for GIB.

 

Over 4NT if GIB sees there are 10+ trumps it would reply about having queen of trumps which very likely will drop.

 

split for 3 missing cards is

 

78% 2-1

22% 3-0

 

And as the extra trump length is not always clear, these 1,2,3+ trumps would be equivalent as queen possession.

[lycier]

The reason for 5♠ is that last version v30 contains some "6th sense" for GIB.

 

Over 4NT if GIB sees there are 10+ trumps it would reply about having queen of trumps which very likely will drop.

 

split for 3 missing cards is

 

78% 2-1

22% 3-0

 

And as the extra trump length is not always clear, these 1,2,3+ trumps would be equivalent as queen possession.

 

 

 

Sorry,I can't totally agree with what you said 6th sense since it is a right descriptive bid.

 

Please look at another evidence hand.

 

 

 

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=lycier&s=SAQ95HKQJT5DJCAK5&wn=xfdyz12345&w=ST8H76DKCQT987643&nn=机器人&n=SKJ32HA9842DAT53C&en=机器人&e=S764H3DQ987642CJ2&d=e&v=o&b=&a=P1H(Major%20suit%20opening%20--%205+%20%21H%3B%2011-21%20HCP%3B)3C(Aggressive%20weak%20jump%20overcall%20--%206+%20C%3B%2010-%20HCP%3B%203+%20total%20points)4C(Cue%20bid%20--%203+%20%21H%3B%2013+%20total%20points)P4N(Blackwood%20%5BH%5D%20--%205+%20%21H%3B%2021-%20HCP%3B%2019-22%20t)P5S(Two%20or%20five%20key%20cards%3B%20queen%20--%203+%20%21H%3B%20%21HQ%3B%2013+%20total%20points)P6C(Cue%20bid%20--%205+%20%21H%3B%2021-%20HCP%3B%20%21CA%3B%2022%20total)P6D(Cue%20bid%20--%203+%20%21H%3B%20%21DA%3B%20%21HQ%3B%2013+%20total%20points%3B%20forcing)P7H(5+%20%21H%3B%2021-%20HCP%3B%20%21CA%3B%2022%20total%20points)PPP&p=STS2S4SAHKH6H2H3HQH7&c=13]499|350[/hv]

 

After 4nt,how to tell me extra trumph length and values?

5♠ is just a decent reply since we have no more space,so I think 5♠ still is a commonese bid with 5-card trumph support.

 

I have to say this is a praiseworthy bidding.