BBO Discussion Forums: GIB the genius - BBO Discussion Forums

Jump to content

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

GIB the genius Smarter than the average bear

#1 User is offline   fred 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 4,598
  • Joined: 2003-February-11
  • Gender:Male
  • Location:Las Vegas, USA

Posted 2011-April-02, 14:13

Click to see the brilliant robot in action

Fred Gitelman
Bridge Base Inc.
www.bridgebase.com
0

#2 User is offline   JLOGIC 

  • 2011 Poster of The Year winner
  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 6,002
  • Joined: 2010-July-08
  • Gender:Male

Posted 2011-April-02, 14:22

It could also have just ruffed a heart lol
0

#3 User is offline   y66 

  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 6,496
  • Joined: 2006-February-24

Posted 2011-April-03, 21:02

Beautiful. GIB's creator would be proud.
If you lose all hope, you can always find it again -- Richard Ford in The Sportswriter
0

#4 User is offline   1eyedjack 

  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 6,575
  • Joined: 2004-March-12
  • Gender:Male
  • Location:UK

Posted 2011-April-03, 22:38

I am just not at all sure why it ruffed the first Spade high, when there was no risk of an overruff, and the second Spade low, when there was. Someone will no doubt put me right.
Psych (pron. saik): A gross and deliberate misstatement of honour strength and/or suit length. Expressly permitted under Law 73E but forbidden contrary to that law by Acol club tourneys.

Psyche (pron. sahy-kee): The human soul, spirit or mind (derived, personification thereof, beloved of Eros, Greek myth).
Masterminding (pron. mPosted ImagesPosted ImagetPosted Imager-mPosted ImagendPosted Imageing) tr. v. - Any bid made by bridge player with which partner disagrees.

"Gentlemen, when the barrage lifts." 9th battalion, King's own Yorkshire light infantry,
2000 years earlier: "morituri te salutant"

"I will be with you, whatever". Blair to Bush, precursor to invasion of Iraq
0

#5 User is offline   jschafer 

  • PipPipPipPip
  • Group: Full Members
  • Posts: 181
  • Joined: 2010-October-26
  • Gender:Male
  • Location:London, UK
  • Interests:Origami, squash, table tennis, travelling

Posted 2011-April-04, 03:19

What do I do to make GIB play like that when it is my partner? :D
0

#6 User is offline   Free 

  • mmm Duvel
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-July-30
  • Gender:Male
  • Location:Belgium
  • Interests:Duvel, Whisky

Posted 2011-April-04, 04:09

What I still don't understand is why it always wants to play high cards when it's not necessary. At trick 1 it ruffs high, and at trick 2 there's no reason at all to play 9 to the Ace, you might even need it later on. Nevertheless it wastes 2 possibly valuable high trumps. Shouldn't it be basic coding to avoid this?
"It may be rude to leave to go to the bathroom, but it's downright stupid to sit there and piss yourself" - blackshoe
1

#7 User is offline   phil_20686 

  • Scotland
  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,754
  • Joined: 2008-August-22
  • Gender:Male
  • Location:Scotland

Posted 2011-April-04, 08:15

View PostFree, on 2011-April-04, 04:09, said:

What I still don't understand is why it always wants to play high cards when it's not necessary. At trick 1 it ruffs high, and at trick 2 there's no reason at all to play 9 to the Ace, you might even need it later on. Nevertheless it wastes 2 possibly valuable high trumps. Shouldn't it be basic coding to avoid this?


Gib doesnt seem to be really a decision making entity. It just simulates lots of hands. Once it discovered that the trumps were 4-0 it started playing for the most likely layout, which it apparently thought that there was no chance of an over-ruff. I.e., it must have originally included hands where clubs were 2-2 with Q on teh right, but after trumps are 4-0 it is only playing for holdings where there is no chance of an overruff so the choice of club is random.
The physics is theoretical, but the fun is real. - Sheldon Cooper
0

#8 User is offline   1eyedjack 

  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 6,575
  • Joined: 2004-March-12
  • Gender:Male
  • Location:UK

Posted 2011-April-04, 08:35

I would have thought that the more Clubs were held by LHO, the greater would be the chance of that hand having Spade short and thence be in a position to overruff. Spade short is likely anyway on the bidding, but shorter still.
Psych (pron. saik): A gross and deliberate misstatement of honour strength and/or suit length. Expressly permitted under Law 73E but forbidden contrary to that law by Acol club tourneys.

Psyche (pron. sahy-kee): The human soul, spirit or mind (derived, personification thereof, beloved of Eros, Greek myth).
Masterminding (pron. mPosted ImagesPosted ImagetPosted Imager-mPosted ImagendPosted Imageing) tr. v. - Any bid made by bridge player with which partner disagrees.

"Gentlemen, when the barrage lifts." 9th battalion, King's own Yorkshire light infantry,
2000 years earlier: "morituri te salutant"

"I will be with you, whatever". Blair to Bush, precursor to invasion of Iraq
0

#9 User is offline   rduran1216 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 815
  • Joined: 2009-August-31

Posted 2011-April-04, 10:51

Aaron Jones for the defense.

http://tinyurl.com/3orb4aj
Aaron Jones Unit 557

www.longbeachbridge.com
0

#10 User is offline   rduran1216 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 815
  • Joined: 2009-August-31

Posted 2011-April-04, 11:07

http://tinyurl.com/3wochgq

10 hands later.
Aaron Jones Unit 557

www.longbeachbridge.com
0

#11 User is offline   fred 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 4,598
  • Joined: 2003-February-11
  • Gender:Male
  • Location:Las Vegas, USA

Posted 2011-April-04, 11:25

Aaron - as far as I can tell your example hands were played against "basic robots" that you rented using the web-client.

If the money is not an issue for you and if you care about the quality of your GIB partners and opponents, I strongly suggest you rent the "advanced robots" instead. I think you will find that there is a dramatic difference.

I discuss this subject at greater length in a recent comment I made in this Forums thread:

Click to view other thread

Fred Gitelman
Brdige Base Inc.
www.bridgebase.com
0

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

8 User(s) are reading this topic
0 members, 8 guests, 0 anonymous users