[thorvald]

And as many other situations, not implemented the right way

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A penalty double on about 0 tricks

Just making 11 when I lead the normal trump

But I have learned yet another lesson

[smerriman]

.. are you saying North should pass out 3♠ with an 11 count opposite an opening hand? Don't forget there was no initial double of 2♦..

[thorvald]

smerriman, on 2022-October-04, 16:10, said:

.. are you saying North should pass out 3♠ with an 11 count opposite an opening hand? Don't forget there was no initial double of 2♦..

Nope, but Double is not the right bid.

Either you can double the first time - GIB define that as penalty (10+ hcp), or you can bid 3N with a ♠-stopper.

You could also define double here as T/O

In real bridge it is also possible to bid 2♠ at the first round showing limit+ with ♦-support.

[thepossum]

Yes GiB has penalties, usually passing takeouts of 2 or 3 of a major
To be fair there occasionally is a successful defence if you can find it
I have become so traumatised that I hardly ever risk such a double

Let me check GiB's card on doubles below game