[lycier]

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Now I am holding a solid suited, the experience has taught me that for a final contract 3nt is often more easier to get 9 tricks in many case,so I cue bid 3♠,Robot can bid 3nt as a final contract if stoper in ♠,however after double,Robot pass,so I have to rebid 4♥.Judgement allowed in any situation,3nt as a final contract is not usually better than 4M.

[BillHiggin]

lycier, on 2013-November-30, 19:34, said:

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Now I am holding a solid suited, the experience has taught me that for a final contract 3nt is often more easier to get 9 tricks in many case,so I cue bid 3♠,Robot can bid 3nt as a final contract if stoper in ♠,however after double,Robot pass,so I have to rebid 4♥.Judgement allowed in any situation,3nt as a final contract is not usually better than 4M.

Let us please not ask to have the bots taught a bad convention.
Note that on this hand, the main advantage to a western cue auction is that we get to watch partner fail in 3N instead of us failing in a heart contract.

[Bbradley62]

Does West's second double provide any information that wasn't already provided by his first double?

[Bbradley62]

retracted

[lycier]

Anyway, the choice of the ways of game is of importance with no doubt .

[1eyedjack]

BillHiggin, on 2013-November-30, 19:59, said:

Let us please not ask to have the bots taught a bad convention.

A lot of conventions earn a reputation worse than deserved through repeated misuse.
The OP did make a rod for his own back by not checking the meaning of 3♠ before bidding it. I have been there.

So the result on this hand is not particularly surprising, nor did it rate to be a success if the hands were better suited, as GIB currently simply does not play it that way.

But whether in the long term it is more sensible for 3♠ to show 19-22 points and a control in the suit, as described, or a NT probe, remains a valid question to raise.