Re: [gnugo-devel] New owl attack pattern

[SP LEE]

>
> I happened to find that the pattern A719 in owl_attackpats.db does the
> similar thing, only it can't be matched on the edge. So it seems to be
> reasonable to modify A719 instead of adding a new pattern. However,
I'm
> again not familiar with the constraints in A719 and I'd like to here
> some comments about it. At first glance, we may just want to merge the
> constraints together, but I'm not sure some of them is really
necessary.
>
> SP Lee
>
>

Below is the revised patch for modifying A719. A722 is no more needed.

SP Lee

Index: owl_attackpats.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/owl_attackpats.db,v
retrieving revision 1.94
diff -u -r1.94 owl_attackpats.db
--- owl_attackpats.db 21 Aug 2003 10:45:52 -0000 1.94
+++ owl_attackpats.db 12 Sep 2003 16:35:50 -0000
@@ -2712,18 +2712,20 @@

 Pattern A719
 # gf New pattern. (3.3.20)
+# spl modified (3.5.2)

-?XXO   reduce eye space
-X.*X
-?XX.
+XXO?   reduce eye space
+.*XO
+XX.O

 :8,s,value(50)

-?XXc
-Xa*X
-?XXb
+BBE?
+c*XF
+AAdF

-;owl_mineye(*)==1 && xlib(b)==2 && !attack(c) && !oplay_attack(*,a,b,b)
+;(lib(A)==3 || lib(B)==2 || oplay_attack(*,d,B)) && proper_eye(c)
+;&& lib(E) > 1 && lib(F) > 2


 Pattern A720