[gnugo-devel] owl performance tuning

[Gunnar Farnebäck]

This patch adds a single owl pattern with no unexpected regression
results but with a 0.18% reduction in owl nodes (and 0.03% reduction
in reading and connection nodes).

/Gunnar

Index: patterns/owl_defendpats.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/owl_defendpats.db,v
retrieving revision 1.120
diff -u -r1.120 owl_defendpats.db
--- patterns/owl_defendpats.db  22 Aug 2004 20:48:36 -0000      1.120
+++ patterns/owl_defendpats.db  20 Oct 2004 19:22:02 -0000
@@ -5200,6 +5200,24 @@
 ; oplay_attack(*,A)
 
 
+Pattern D1207
+# gf New pattern. (3.7.3)
+
+o..x       sacrifice a stone to gain tempo
+.X*.
+....
+----
+
+:8,s,value(40)
+
+ob.x
+aX*.
+....
+----
+
+;oplay_attack(*,a,a) && oplay_attack(*,b,b)
+
+
 #########################################################
 #                                                       #
 #                       Escape                          #