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RE: [gnugo-devel] more owl tuning
From: |
Portela Fernand |
Subject: |
RE: [gnugo-devel] more owl tuning |
Date: |
Sat, 15 Feb 2003 19:55:40 +0100 |
Just a short note, as I just happened to see in a twogtp game
a similar position as the one described by :
> +Pattern D1386a
> +# gf New pattern. (3.3.17)
> +
> +OX.x connect along edge to strong dragon
> +o*.O
> +----
The position in the game doesn't match, but it's close
OX.O
...O
----
The left O stone belongs to a living dragon, those on the
right (a 15 stones worm) were declared dead after the owl code
wasn't able to find a defense. The connection would have
worked.
Are there good reasons to disallow an O stone in the upper-right
corner of the D1386x patterns ? In case not, a corrective
patch is appended (sorry I can't test it on regressions, my box
is still busy running twogtp matches)
/nando
Index: patterns/owl_defendpats.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/owl_defendpats.db,v
retrieving revision 1.86
diff -u -r1.86 owl_defendpats.db
--- patterns/owl_defendpats.db 12 Feb 2003 11:16:31 -0000 1.86
+++ patterns/owl_defendpats.db 15 Feb 2003 19:06:20 -0000
@@ -6400,13 +6400,13 @@
Pattern D1386a
# gf New pattern. (3.3.17)
-OX.x connect along edge to strong dragon
+OX.? connect along edge to strong dragon
o*.O
----
:8,Eb,value(90)
-aX.x
+aX.?
o*.b
----
@@ -6416,13 +6416,13 @@
Pattern D1386b
# gf New pattern. (3.3.17)
-OX.x connect along edge
+OX.? connect along edge
o*.O
----
:8,Eb,value(35)
-aX.x
+aX.?
o*.b
----