A common wrong for Gib

[lycier]

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=lycier&s=SAHJ63DQJCAT76543&wn=机器人&w=SK7542HTDK7654CJ9&nn=机器人&n=S863HAK75DAT8CKQ8&en=机器人&e=SQJT9HQ9842D932C2&d=n&v=n&b=&a=1N(notrump%20opener.%20Could%20have%205M.%20--%202-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points)P2N(Minor%20transfer%20--%206+%20%21C)P3C(Transfer%20completed%20--%202-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points)P3S(Splinter%20--%206+%20%21C%3B%201-%20%21S%3B%209+%20HCP%3B%20forcin)P3N(2-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points)PPP&p=SQSAS5S6C7C9CKC2CQH2CTCJC8D2CAD4C6S7S8H4C5S2S3D3C4HTD8SJC3D6DTD9H6D7HAH8HKH9H3S4DASTDJD5H7HQHJDKS9DQSKH5]499|350[/hv]

 

 

 

after 3♠ splinter,strangely Gib N rebid 3nt without any stopper in ♠.

 

This is a common wrong.

[1eyedjack]

Perhaps it is following Garozzo's law.

 

But seriously, I agree with you. As with so many cases, it knows how to show a singleton, but no clue how to bid opposite one.

 

 

 

[georgi]

Thanks for reporting.

 

Fixed in v31.

 

It will run away of course to 4♣ with lack of stoppers in short suit shown by responder.

 

However, as in current version v30, GIB wouldn't bid 3♠ with A/K in singleton unless hand is too strong and could override this. Like 14+HCP.