[thepossum]

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As you can see, ignoring the double negative was the correct approach

[smerriman]

Yeah, GIB's cheaper minor logic is completely broken. It uses it when it has a true double negative, but it also bids it every single time it has a 5 card suit of the same strain. I posted about this myself on the forum over 3 years ago, and it's come up numerous times since.

(Why GIB doesn't raise clubs is even worse.)

[johnu]

I don't see any reason 3♥ shows 25+ points while 2♣ and 3♣ show 23+ points. It's not as if you can pass responder's double negative bid and are showing extra values by bidding over it.

[johnu]

smerriman, on 2020-August-29, 18:31, said:

Yeah, GIB's cheaper minor logic is completely broken. It uses it when it has a true double negative, but it also bids it every single time it has a 5 card suit of the same strain. I posted about this myself on the forum over 3 years ago, and it's come up numerous times since.

I believe GIB adds 100 milliseconds to these fake double negatives to let a GIB partner a heads up that it wasn't really a double negative. Unfortunately humans can't detect this UI so they are in the dark. GIB apparently learned about using pauses to show 2 different types of hands from run of the mill club players.

[hrothgar]

FWIW, I also really dislike the initial 2♦ response

I think that 2N is a much better bid

[Vampyr]

hrothgar, on 2020-August-30, 05:29, said:

FWIW, I also really dislike the initial 2♦ response

I think that 2N is a muhc better bid

I don’t think you should get in the 2♣ bidder’s way. There is a reason that 2NT is known as the “slam killer”.

[hrothgar]

Vampyr, on 2020-August-30, 05:31, said:

I don’t think you should get in the 2♣ bidder’s way. There is a reason that 2NT is known as the “slam killer”.

I have always heard that in the context of 2NT openings

[pescetom]

Vampyr, on 2020-August-30, 05:31, said:

I don’t think you should get in the 2♣ bidder’s way. There is a reason that 2NT is known as the “slam killer”.

2♣ - 2NT = I don't want to play in this partnership any more
(seen on a CC of Sabine Auken)

[Vampyr]

pescetom, on 2020-August-30, 06:04, said:

2♣ - 2NT = I don't want to play in this partnership any more
(seen on a CC of Sabine Auken)

However, if you play Kokish, you can use this bid to show that you want to play in a minor opposite balanced 20-21+. This is the most likely by far of partner’s hand types.

[pescetom]

Vampyr, on 2020-August-30, 11:55, said:

However, if you play Kokish, you can use this bid to show that you want to play in a minor opposite balanced 20-21+. This is the most likely by far of partner’s hand types.

That is actually almost how we play it, minors 5-5. But the basic reasoning was to assign it to something rare and unlikely to lead to NT.