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GIB button


42krunner

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  • 7 years later...

Clicking the GIB button shows the best double dummy result possible after leading each card. A green "=" means the contract will be made exactly, a number in green is overtricks, a number in red is undertricks.

 

Can someone elaborate on this more. How to read double dummy in BBO (new version). What the numbers and color mean?

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Can someone elaborate on this more. How to read double dummy in BBO (new version). What the numbers and color mean?

Green means that the contract can be made with perfect double dummy play and defense. A number means that many overtricks can be made.

 

Red means the contract can be defeated, the number is the number of undertricks that can be achieved.

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Green means that the contract can be made with perfect double dummy play and defense. A number means that many overtricks can be made...

..., an equal sign means the contract makes exactly.

 

Yes, it should be obvious. Just in case it wasn't.

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