[gnugo-devel] tuning patch

[Gunnar Farneback]

Here's a patch with owl tuning and a minor revision of the semeai
code.

- avoid ko captures when filling outer liberties in semeai reading
- owl tuning

Regression delta:
ld_owl:315      PASS 1 P18 [1 P18]  
neurogo:12      PASS B10 [B10]
strategy3:141   PASS C7 [C7]
semeai:45       PASS 0 0 PASS [0 0 PASS]
strategy4:182   PASS F8 [E7|F8]
nngs4:400       PASS 0 [0]
9x9:310         PASS H7 [H7|H8]
9x9:350         PASS 0 [0]

/Gunnar

Index: engine/owl.c
===================================================================
RCS file: /cvsroot/gnugo/gnugo/engine/owl.c,v
retrieving revision 1.187
diff -u -r1.187 owl.c
--- engine/owl.c        7 Jan 2004 10:00:20 -0000       1.187
+++ engine/owl.c        9 Jan 2004 18:28:52 -0000
@@ -857,7 +857,7 @@
        if (liberty_of_goal(pos, owlb)) {
          if (!liberty_of_goal(pos, owla)) {
            /* outside liberty */
-           if (safe_move(pos, color)) {
+           if (safe_move(pos, color) == WIN) {
              safe_outside_liberty_found = 1;
              outside_liberty.pos = pos;
              break;
@@ -1416,7 +1416,7 @@
   int other = OTHER_COLOR(color);
   int result = NO_MOVE;
 
-  if (safe_move(liberty, other))
+  if (safe_move(liberty, other) == WIN)
     return liberty;
   if (is_self_atari(liberty, other)) {
     int fill;
Index: patterns/owl_attackpats.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/owl_attackpats.db,v
retrieving revision 1.101
diff -u -r1.101 owl_attackpats.db
--- patterns/owl_attackpats.db  7 Jan 2004 10:00:20 -0000       1.101
+++ patterns/owl_attackpats.db  9 Jan 2004 18:28:54 -0000
@@ -1059,6 +1059,27 @@
 ; oplay_attack(*,a,b,c,c)
 
 
+Pattern A232b
+# gf New pattern. (3.5.4)
+# See trevorc:240.
+
+?O.            Jump down to block
+Y..
+.*.
+...
+---
+
+:8,-,value(80)
+
+?ed
+Yab
+.*c
+...
+---
+
+; xlib(d)<=2 && lib(e)>3 && oplay_attack(*,a,b,c,c)
+
+
 Pattern A233
 # db added (3.1.10)
 
@@ -4473,21 +4494,42 @@
 Pattern A1124a
 # tm New Pattern (3.1.22) (see nngs:770 decide-dragon K4)
 #   see also D1140
+# gf Revised. Might still be too general. (3.5.4)
 
 ?OY
-?*.
-???
+x*.
+xx.
 
 :8,-,value(70)
 
 ?AY
 b*e
-cd?
+cd.
 
 ;(owl_escape_value(d) > 0
 ; || owl_escape_value(b) > 0
 ; || owl_escape_value(c) > 0)
 ;&& !oplay_defend_both(e,*,A,e)
+
+
+Pattern A1124b
+# gf New pattern. (3.5.4) (see nngs:770 decide-dragon K4)
+
+?OX
+x.*
+xx?
+
+:8,-,value(70)
+
+?OA
+be*
+cd?
+
+;(owl_escape_value(d) > 0
+; || owl_escape_value(b) > 0
+; || owl_escape_value(c) > 0)
+;&& xplay_connect(e,*,e,A)
+;&& oplay_disconnect(*,e,e,A)
 
 
 Pattern A1125
Index: patterns/owl_defendpats.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/owl_defendpats.db,v
retrieving revision 1.110
diff -u -r1.110 owl_defendpats.db
--- patterns/owl_defendpats.db  7 Jan 2004 10:00:20 -0000       1.110
+++ patterns/owl_defendpats.db  9 Jan 2004 18:28:55 -0000
@@ -1367,12 +1367,13 @@
 
 
 Pattern D311
+# gf Added n classification. (3.5.4)
 
 OX?        try to seal off some space
 .*O
 .??
 
-:8,-,value(60)
+:8,n,value(60)
 
 OX?
 a*O