[pescetom]

This time it accepts an invite to slam with the minimum 22 HCP explained for 2♣;2NT and with 4333 shape.

[johnu]

GIBBO certainly understands invitational bids. That's why it accepted your invitation. What GIBBO doesn't understand is what it is supposed to respond to an invitation. Sort of similar to how GIBBO understands offshape takeout doubles enough to make one, but has no idea what do do later in the auction.

[msheald]

A player with 4333 shape and K-J of clubs should subtract a point or two for distribution, so GIBBO should not have accepted the invite. However, GIBBO does not play shape well, so this is understandable. Best regards.

Mike

[pescetom]

 msheald, on 2026-May-13, 05:22, said:

A player with 4333 shape and K-J of clubs should subtract a point or two for distribution, so GIBBO should not have accepted the invite. However, GIBBO does not play shape well, so this is understandable.

I think it's a pretty good hand despite the shape, worth it's 22 HCP and maybe a little more (say half a point). But no way is it worth an accept with a 22-24 range.

[thepossum]

pescetom, on 2026-May-12, 14:34, said:

This time it accepts an invite to slam with the minimum 22 HCP explained for 2♣;2NT and with 4333 shape.

I think that GIBBO thinks refusing an invite is rude. It is inviter beware

I have a similar isse with it leaving in too many takeout doubles. But to be fair there is often a DD play to defeat the contract. Maybe also a DD play to make said games and slams above. Oh no if I had finessed the 7 rather than the 10. Sometimes I think it can see opps' cards, maybe mine too

[msheald]

Maybe. I play down 4333 distros, especially with KJ, by 1 to 2 points since I've been burned too many times when bidding just based on point count. It would be curious to see what a 5000 hand simulation finds in such a situation.

Mike