BBO Discussion Forums: Must be bug? - BBO Discussion Forums

Jump to content

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

Must be bug?

#1 User is offline   BunnyGo 

  • Lamentable Bunny
  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,505
  • Joined: 2008-March-01
  • Gender:Male
  • Location:Portland, ME

Posted 2012-June-15, 02:39

3 "simple" bots.

http://tinyurl.com/782ep5h
Bridge Personality: 44 44 43 34

Never tell the same lie twice. - Elim Garek on the real moral of "The boy who cried wolf"
0

#2 User is offline   gwnn 

  • Csaba the Hutt
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 13,027
  • Joined: 2006-June-16
  • Gender:Male
  • Interests:bye

Posted 2012-June-15, 03:04

Just to make it clear you're talking about the discard of 10?
... and I can prove it with my usual, flawless logic.
      George Carlin
0

#3 User is offline   BunnyGo 

  • Lamentable Bunny
  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,505
  • Joined: 2008-March-01
  • Gender:Male
  • Location:Portland, ME

Posted 2012-June-15, 04:00

Yes, sorry.
Bridge Personality: 44 44 43 34

Never tell the same lie twice. - Elim Garek on the real moral of "The boy who cried wolf"
0

#4 User is offline   gwnn 

  • Csaba the Hutt
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 13,027
  • Joined: 2006-June-16
  • Gender:Male
  • Interests:bye

Posted 2012-June-15, 04:04

Trick 5 is also absurd FWIW.
... and I can prove it with my usual, flawless logic.
      George Carlin
0

#5 User is offline   ahydra 

  • AQT92 AQ --- QJ6532
  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,840
  • Joined: 2009-September-09
  • Gender:Male
  • Location:Wellington, NZ

Posted 2012-June-15, 05:39

View Postgwnn, on 2012-June-15, 04:04, said:

Trick 5 is also absurd FWIW.


The club discard? Must be a bug :)

Anyway, this is another case of "don't do things that can lose if there's a 100% alternative". Well, almost - the S4 is not an equal to the 8, but the point is the 10 is needed on some layouts (e.g. the actual one) whereas the 4 is never needed, not least because dummy has the five!

ahydra
0

#6 User is offline   ArtK78 

  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 7,786
  • Joined: 2004-September-05
  • Gender:Male
  • Location:Galloway NJ USA
  • Interests:Bridge, Poker, participatory and spectator sports.
    Occupation - Tax Attorney in Atlantic City, NJ.

Posted 2012-June-15, 06:50

Bizarre hand. Declarer is cold for 11 tricks after the lead, and then declarer pitches one away. The bot "pitches" a spade trick and gets a diamond trick in return so the same 10 tricks are taken that declarer would always take after declarer pitched a trick.

I often see the bot "pitch" a trick when it makes no difference.
0

#7 User is offline   rwbarton 

  • PipPipPipPip
  • Group: Full Members
  • Posts: 104
  • Joined: 2006-March-26

Posted 2012-June-15, 13:04

View Postahydra, on 2012-June-15, 05:39, said:

The club discard? Must be a bug :)

Anyway, this is another case of "don't do things that can lose if there's a 100% alternative". Well, almost - the S4 is not an equal to the 8, but the point is the 10 is needed on some layouts (e.g. the actual one) whereas the 4 is never needed, not least because dummy has the five!

ahydra


Dummy is South. With 5 tricks remaining West can see that South can take 3 and West can take 2 whether West comes down to Q10 or Q J. So I wouldn't consider the 10 discard a bug. (It would be nice if GIB didn't make "inhuman" plays like discarding the 10, but that's pretty low on my wishlist for GIB improvements!)

The club discard on trick 5 looks like it might be a safety play against West having J964, perhaps? Of course it would have been better to test clubs earlier but once the Q is cashed the South hand is sort of squeezed into giving up a spade stopper or losing communication with the North hand—while the sixth club can never be the 9th trick. Hopefully the scoring was IMPs...
0

#8 User is offline   cloa513 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,529
  • Joined: 2008-December-02

Posted 2012-June-15, 15:25

View Postrwbarton, on 2012-June-15, 13:04, said:

Dummy is South. With 5 tricks remaining West can see that South can take 3 and West can take 2 whether West comes down to Q10 or Q J. So I wouldn't consider the 10 discard a bug. (It would be nice if GIB didn't make "inhuman" plays like discarding the 10, but that's pretty low on my wishlist for GIB improvements!)

The club discard on trick 5 looks like it might be a safety play against West having J964, perhaps? Of course it would have been better to test clubs earlier but once the Q is cashed the South hand is sort of squeezed into giving up a spade stopper or losing communication with the North hand—while the sixth club can never be the 9th trick. Hopefully the scoring was IMPs...

Why not a heart discard?
0

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

1 User(s) are reading this topic
0 members, 1 guests, 0 anonymous users