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Seems to be a bug in the bidding

#1 User is offline   Trick13 

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Posted 2020-September-19, 21:05

https://tinyurl.com/y2r7b6f4

The final bid of 4♥ is described as "4+♣; 4+♥; 3-♠; 12+ HCP; 13-18 total points".

I guess that is the correct description for the bid (I shouldn't really complain: it scored 84%), but why would it choose 4♥ over 4♠?

Is it because, in the limited set of hands it simulated, 4♥ scored the same as 4♠, so it picked one denomination at random?
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#2 User is offline   johnu 

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Posted 2020-September-20, 01:05

GIB plays reverse preference bids. If you bid 2 suits, GIB takes a preference to the likely worst fit. Don't worry, it is a feature, not a bug.
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