[gnugo-devel] tuning patch

[pogonyshev]

- owl tuning

./regress.sh . owl.tst
208 unexpected PASS!
./regress.sh . nngs4.tst
370 unexpected PASS!

this patch adds two new patterns and revises one more. i tried to
solve owl:226 with A424, but gnugo is expereincing many problem in
that position and so the plan failed. the pattern has no impact on
regression, but it looks very reasonable to me, so i left it in the
patch. the test (owl:226) also seems to have a wrong answer, [2 O8]
looks correct. i added it to the patch, don't foget to remove that
part in case i'm wrong ;)

btw, what for do we use explicit anchors in owl_attackpats.db?

Paul


--- patterns/owl_attackpats.db.orig     2003-03-18 22:39:18.000000000 +0200
+++ patterns/owl_attackpats.db  2003-03-18 23:57:12.000000000 +0200
@@ -820,7 +820,7 @@
 
 Pattern A224
 
-????        block if O can't cut
+????        block if X can't cut
 OO.?
 XY*.
 ....
@@ -1085,6 +1085,24 @@
 ; !oplay_attack(*,*)
 
 
+Pattern A237
+# pp New pattern (3.3.18) See nngs4:370
+
+??O.       eliminate an eye in reverse sente
+xY*O
+X..o
+----
+
+:8,-,value(80)
+
+??Oc
+aY*A
+X.bo
+----
+
+; (x_somewhere(a) || ! safe_omove(a)) && !xplay_defend(*,b,c,A)
+
+
 #########################################################
 #                                                       #
 #          Limiting moves on the first line             #
@@ -1742,6 +1760,22 @@
 ;(owl_escape_value(a) > 0)
 
 
+Pattern A424
+# pp New pattern (3.3.18)
+
+XYO?        block and prevent opponent from playing double threat move
+.O.o
+XX*.
+
+:8,-,value(80)
+
+XYO?
+.O.o
+XX*a
+
+;owl_escape_value(a) > 0
+
+
 #########################################################
 #                                                       #
 #          Eye reducing moves on the second line        #
--- patterns/owl_defendpats.db.orig     2003-03-18 23:44:11.000000000 +0200
+++ patterns/owl_defendpats.db  2003-03-18 23:31:22.000000000 +0200
@@ -2570,16 +2570,17 @@
 Pattern D704b
 # gf Revised constraint. (3.1.15)
 # gf Revised constraint. (3.1.23)
+# pp Revised pattern. (3.3.18)
 
-oO.         half eye sometimes missed
-O.*
----
+oO.?       half eye sometimes missed
+O.*?
+----
 
 :8,-,value(35)
 
-cOb
-O.*
----
+cOb?
+O.*?
+----
 
 ; (safe_xmove(b) || safe_xmove(*)) && oplay_attack(*,b,b)
 ; && (o_somewhere(c) || !safe_xmove(c))
--- regression/owl.tst.orig     2003-03-19 02:23:20.000000000 +0200
+++ regression/owl.tst  2003-03-19 02:23:25.000000000 +0200
@@ -831,7 +831,7 @@
 
 loadsgf games/owl29.sgf 132
 226 owl_attack J10
-#? [1 O8]*
+#? [2 O8]*
 
 loadsgf games/owl30.sgf 172
 227 owl_attack L19

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