[Computer-go] GNU Go grinds to halt when opponent plays out a ladder?

David Fotland fotland at smart-games.com
Fri Jul 1 20:05:47 PDT 2011


Yes.  The traditional Many Faces had the same issue, but not quite as
severe.  When a ladder doesn't work, the tactical module has to choose
between so many double-atari moves that it slows down significantly.  The
narrow tree becomes suddenly very wide.

David

> -----Original Message-----
> From: computer-go-bounces at dvandva.org [mailto:computer-go-
> bounces at dvandva.org] On Behalf Of Peter Drake
> Sent: Friday, July 01, 2011 11:36 AM
> To: computer-go at dvandva.org
> Subject: [Computer-go] GNU Go grinds to halt when opponent plays out a
> ladder?
> 
> When Orego is playing many games against GNU Go (3.8 under CentOS),
> Orego occasionally plays out a (losing) ladder. In this situation, GNU
> Go takes an incredibly long time (many minutes) to play each move, as
> if it's paralyzed with (unjustified) fear that it has misread the
> ladder.
> 
> Has anyone else run into this?
> 
> Peter Drake
> http://www.lclark.edu/~drake/
> 
> 
> 
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