Two lessons GIB needs to learn
#1
Posted 2012-September-30, 10:32
1. If I bid a suit 4 times, I don't want to play 6N even if he does have a void in my suit.
2. If I jump to 4 of an agreed major, that is fast arrival and I do NOT want to play 5 of the major.
Those two things alone would improve the bot's bidding immensely.
Thanks!
#2
Posted 2012-September-30, 14:29
#3
Posted 2012-October-02, 06:59
#4
Posted 2012-October-02, 07:01
In 2/1, bidding 1N Forcing absolutely denies 4+ spades, even by a passed hand, even when you have a limit raise of hearts. The auction can go 1H 1S 1N 3H to show a limit raise with 3 hearts and 4+ spades.
I have two recent examples of this in screenshots, but I don't know how to insert a jpg here in the forum. One can be seen at
Please inform GIB to NEVER bid 1N over 1H with 4+ spades, let alone SIX of them.
#5
Posted 2012-October-02, 12:14
Your last one, well known problem, discussed before, developer aware of it:
http://www.bridgebas...among-his-clubs
Fast arrival - this is somewhat controversial, a lot of experts prefer "picture jumps" to generic fast arrival principles.
The 6nt problem is often one of GIB assuming too many HCP on certain auctions, keep on bidding a suit on some auctions it assumes more & more HCP every time you bid it which is goofy and leads it to believe 6nt is a good spot. It needs to be adjusted so that it assumes more "total points" = "more length", but its current evaluation algorithm is kind of lame and doesn't count length points. Also HCP need to be capped by limited bids earlier in the auction.
Really best to post the hand, the exact sequences so they can be fixed.To do this, if you are in the BBO flash client just do export deal->handviewer link and copy/paste the URL here. Or retrieve the hand from www.bridgebase.com/myhands , post the link to the movie. To get fancy & have the deal come up inline in the forum, you have to actually go to the url, copy the lin portion (the text after the '?' in the URL), and encase in handviewer [ hv] tags without the space. It will look something like:
[ hv=lin=pn|.........]400|300[ /hv]
without the space right after the [. The 400|300 part controls how big the diagram displays, 400|300 is a decent size for this forum.
#6
Posted 2012-October-02, 17:25
As for bidding 1N with six spades (had another case just today with 5 spades), if this has been posted before as a bug, why is the robot still doing it? It can't be a hard thing to fix.
#7
Posted 2012-October-02, 17:37
Chick, on 2012-October-02, 17:25, said:
Most "intentional bidding that you dislike" on the behalf of GIB is likely due to bugs. Some of them, like the "fast arrival" you mention aren't necessarily bugs but stylistic preferences. But the particular sequence GIB bid on with might well be some bug, so go ahead and post them if you think it's "wrong" for GIB to bid that way. People here on the forum will chime in if they agree/disagree, and BBO will make some judgment on whether it's a bug, how high a priority it is, when to fix it.
Quote
Who knows. There are lots of problems, sometimes they prioritize fixing other things first for whatever reason, and sometimes things slip through the cracks. It seems the main guy fixing the bugs currently (georgi) was absent for a while for whatever reasons then suddenly posted a whole slew of fixed sequences that will come out in a new release shortly. Sometimes rules that seem simple to us as humans may be hard to fix in GIB without breaking other things since so much depends on priority of one rule vs. another. So any of these things can delay things getting fixed.
#8
Posted 2012-October-04, 08:18
#9
Posted 2012-October-04, 09:16
http://www.bridgebase.com/tools/handviewer.html?myhand=M-6517588-134935590155901
Yes, this is one of those where rebidding a suit in competition is assumed to be a massive number of total points instead of just a massive number of cards in the suit as it should be.
#10
Posted 2012-October-04, 11:59
#11
Posted 2012-October-04, 12:48
Chick, on 2012-October-04, 11:59, said:
I see. Looks like the forum software is somewhat broken, as well as handviewer links that link to a specific hand #. Maybe you have to link to the traveller instead.
Or use the copy/paste [ hv= ...
method.
Guess the export->hand viewer link in the flash client that gives a tinyurl is more reliable.