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Re: [gnugo-devel] Bug in owl code in 3.1.10

From: Daniel Bump
Subject: Re: [gnugo-devel] Bug in owl code in 3.1.10
Date: Mon, 15 Oct 2001 11:12:02 -0700

Greg Gaertner wrote:

> The attatched sgf  file contains a game in which the owl code appears to
> assess a group as alive, even though
> its either critical or  dead.
> gnugo -l 3110bug.sgf -Lxx -T     xx anything between 59 and 71
> illustrates the problem.

Not on my machine! I'm using the latest CVS version but there
have been no changes to the engine since the 3.1.10 release.

I assume you're talking about the D5 dragon.

gnugo -T shows this in cyan (dead) and we can confirm this as

address@hidden freedom]$ gnugo --quiet -l [file] -L63 --decide-dragon D5
finished examine_position
D5 can be attacked at C8 (4 variations)
D5 cannot be defended (4 variations)

Is it possible this is a platform dependent problem?

> 3.1.10 scoring is also messed up.  I assume its a side effect of
> this problem.

A statement like ``3.1.10 scoring is also messed up'' is not a
good bug report. Please give a reproducible example.


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