[gnugo-devel] Pattern updates

[SP LEE]

> Thus there must be an own stone left or right to * and there must be no own 
> stone above *. Now there are less regression breakage. For move 104 of 
> Dan's game, it played P9.
>
> owl:80 pass
> lazarus:16 pass
> nngs3:1000 pass
> handtalk:10 fail  Correct 'E9|F8', got 'C11'
> arend2:50 fail Correct 'S14', got 'T13'
>
> The failed cases seem to not only related to owl analysis and I have 
> difficult to understand the gnugo's decisions.
>
> SP Lee

I have gotten rid of the fail of arend:50 by modifying the pattern A1107. 
Also, according to gunnar's suggestion, I removed the pattern EJ61. For 
completeness I put all the patches below. The regression test result:

owl:80 pass
lazarus:16 pass
nngs3:1000 pass
handtalk:10 fail  Correct 'E9|F8', got 'C11'

The failed case is still disputable, because C11 could be seen as an 
indirect attack: black has to answer on the edge and white has chance to 
make itself thicker.

SP Lee

Index: owl_defendpats.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/owl_defendpats.db,v
retrieving revision 1.99
diff -u -r1.99 owl_defendpats.db
--- owl_defendpats.db   25 Jun 2003 15:55:15 -0000      1.99
+++ owl_defendpats.db   3 Jul 2003 19:29:25 -0000
@@ -484,13 +484,15 @@
Pattern D123
# tm New Pattern (3.1.17)
# tm Modified (3.1.18)
+# spl added more constraints (3.3.23)

-??*??  expand eye shape, not in corner
+??x??
+??*O?  expand eye shape, not in corner
?O.O?
?...?
-----

-:|,-,value(65)
+:8,-,value(65)


Pattern D124

Index: owl_attackpats.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/owl_attackpats.db,v
retrieving revision 1.88
diff -u -r1.88 owl_attackpats.db
--- owl_attackpats.db   25 Jun 2003 15:55:15 -0000      1.88
+++ owl_attackpats.db   3 Jul 2003 19:26:42 -0000

@@ -3815,13 +3815,17 @@
#      see 13x13:52 --decide-dragon K10
Pattern A1107

-O*          defend the surrounding chain
-YO
+#spl never on edge (3.3.23)

-:/,-,value(95)
+???
+O*?          defend the surrounding chain
+YO?

-a*
-Yb
+:8,-,value(95)
+
+???
+a*?
+Yb?

; vital_chain(a) && vital_chain(b)
; && !xplay_defend_both(*,a,b)

Index: patterns.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/patterns.db,v
retrieving revision 1.113
diff -u -r1.113 patterns.db
--- patterns.db 27 Jun 2003 15:37:17 -0000      1.113
+++ patterns.db 3 Jul 2003 19:23:07 -0000
@@ -12532,16 +12532,16 @@

; owl_threatens(*,A)

-
-Pattern EJ61
-
-o.X??       follow through after hane
-O.XO.
-.XO*.
-.....
------
-
-:8,J
+#spl removed: there are many more variations (3.3.23)
+#Pattern EJ61
+#
+#o.X??       follow through after hane
+#O.XO.
+#.XO*.
+#.....
+#-----
+#
+#:8,J


Pattern EJ62

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