[lycier]

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2♦ is alerted as 16- total points?Whatever I do,GIB's explanation is wrong here.

[helene_t]

GIB plays penalty doubles here so your double showed 17+ points and biddable spades.

The 2♦ bid is strange - why not pass when opps double for penalty and you have 4-card support? Presumably it was meant as a good spade raise.

[Bbradley62]

As Helene indicates, no explanation of your future bids will match your hand because you've already misbid when you doubled; your hand is a nice quiet pass over 1♠. GIB does not play support doubles over 1♣-1♦. (I don't think this is in the documentation, but there have been previous forum discussions about it.)

I agree, however, that 2♦ should have a much better explanation, probably as a good spade raise as Helene suggests.

Also, North's double should have a better explanation. This is another one of those instances where a call has exactly the same explanation as the previous call, but it should be showing something: better diamonds, more strength, than the original 1♦ bid. If this is one of those things where it shows either more diamonds or more points, and therefore can't specifically say that it shows more of either, it should say "penalty double".

[1eyedjack]

I don't think that the explanation of the 2D is the main point, but more the fact that whatever West meant it to be, East clearly thought that it was completely different. And they are both GIBs

[Bbradley62]

If East did understand that 2♦ was a good spade raise, I don't know what 2♠ would have shown as opposed to pass over 2♦X. I agree that someone in the E-W partnership should have bid again, but it's not clear to me that it isn't West who is the culprit for failing to correct to 2♠.

[johnu]

Once again, a psychic bid (double by South showing 17-21 HCP) has hopelessly fouled the auction.

[lycier]

johnu, on 2014-January-31, 17:39, said:

Once again, a psychic bid (double by South showing 17-21 HCP) has hopelessly fouled the auction.

As I earlier said,whatever I do,GIB's explanation is always wrong since that bid is a limited raise to pd's suit.
now the same story happened again.

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Now you see,maybe my double was wrong,GIB's error is so very serious, unreliable.

[lycier]

It seems that is a blind sopt of GIB's system,so it needs to be improved.

[Bbradley62]

lycier, on 2014-February-02, 08:36, said:

As I earlier said,whatever I do,GIB's explanation is always wrong since that bid is a limited raise to pd's suit.
now the same story happened again.
...
Now you see,maybe my double was wrong,GIB's error is so very serious, unreliable.

No, the only error was on your part. You again have a very easy PASS after 1♠. You overstated your hand by 5+ points. GIB still does not play support doubles over 1♣-1♦.

[lycier]

Bbradley62, on 2014-February-02, 12:50, said:

No, the only error was on your part. You again have a very easy PASS after 1♠. You overstated your hand by 5+ points. GIB still does not play support doubles over 1♣-1♦.

As a bad final result,it is GIB to get,not me.I got a good score.If this problem can't be solved, too childish?

[lycier]

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This is a same problem,after DBL,why GIB West pass? Anti-interference ability is poor.

[helene_t]

GIB can't read your alerts. It is assuming you play the GIB system, which means that your 2♥ bid is natural. Obviously it is not going to bid hearts when it knows that you have six of them.

Probably 3NT would been better than pass but it is difficult. Playing a non-GIB system against GIB can work wonders ....

[Bbradley62]

helene_t, on 2014-February-06, 08:59, said:

Playing a non-GIB system against GIB can work wonders ....

In the real world, this is called "cheating": telling your opponents that you are playing one set of conventions when you are actually playing another.

[helene_t]

Well, if you play against opps who refuse to read your convention card and refuse to ask about your alerted calls, playing an exotic system works well also. I wouldn't call it cheating. Choosing an exotic system for that reason is a bad sportsmanship, though. IMHO.

[Stephen Tu]

Even though lycier is choosing screwy non-systemic bids at times, there's no reason GIB shouldn't have bids to expose the effective psyches, or play in 4-1 fits when 5-4s are available. There's no reason GIB can't be fixed to take a preference to hearts. An opponent showing a suit shouldn't prevent you from playing in it no matter how the auction develops.

[johnu]

Stephen Tu, on 2014-February-06, 11:13, said:

Even though lycier is choosing screwy non-systemic bids at times, there's no reason GIB shouldn't have bids to expose the effective psyches, or play in 4-1 fits when 5-4s are available. There's no reason GIB can't be fixed to take a preference to hearts. An opponent showing a suit shouldn't prevent you from playing in it no matter how the auction develops.

You call them non-systemic, I call them psychics, others aren't so charitable. Of course it would be nice if GIB could sniff out a psycher, but who, partner or opponent? Since GIB doesn't intentionally psyche, I guess you would assume the non-GIB player doesn't have their bid. But programming resources are limited and as you know, there are probably hundreds of areas where GIB bidding needs improvement, so I would put figuring out a psyche pretty close to the bottom, if not at the very bottom, of any list of projects.

[Stephen Tu]

I didn't say it should be highest priority. But there doesn't seem to be any particular overall master plan in the order of bugs being fixed, they are just being randomly addressed as they are reported, and it seems people are ganging up on lycier for reporting this with his psychic/non-systemic bids when there's certainly still a bug here, when GIB partner has shown red suits and you have 4 in one and only one in the other, passing is criminal, as is passing out 2d-x on the first hand with a 9 cd known spade fit.