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Re: [gnugo-devel] Anomalous Game


From: Paul Pogonyshev
Subject: Re: [gnugo-devel] Anomalous Game
Date: Sun, 28 Sep 2003 01:31:50 +0000
User-agent: KMail/1.5.9

I wrote:
> Index: patterns/eyes.db
> ===================================================================
> RCS file: /cvsroot/gnugo/gnugo/patterns/eyes.db,v
> retrieving revision 1.41
> diff -u -p -r1.41 eyes.db
> --- patterns/eyes.db  18 Jul 2003 18:59:22 -0000      1.41
> +++ patterns/eyes.db  26 Sep 2003 20:03:45 -0000
> @@ -541,8 +541,8 @@ address@hidden
>
>  Pattern 448
>
> - !
> -!*x
> + )
> +)*x
>
>  :0011
>

This patch has a bad regression delta:

nicklas1:1213   FAIL F12 [N4]
owl1:293        FAIL 1 R5 [0]
manyfaces1:30   PASS C14 [C14]

If you count the position in the bug report by David Corbett, that
will be 2 passes and 2 fails.  I didn't go into details, but i
suspect that the fails are caused by different vital point being
selected by optics code.

I still think this patch is correct.  I think we should accept it
and improve vital point selection separately.

Paul


p.s. this patch makes "combination half eye" code in read_eye()
     work in the posted position.




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