[gnugo-devel] endgame tuning

[Evan Berggren Daniel]

- minor endgame tuning

endgame:850     PASS
endgame:910     PASS
kgs:70          PASS

All three were tuned for and real; endgame:910 is only partially solved 
(L14 is more reasonably valued, but T2 is still somewhat undervalued).

I also targeted Gifu03:202 a bit; GNU Go's answer had changed relative to 
the game move (and improved) but the relative value of the correct move 
and the game move was still wrong; now it's not.  Perhaps the test needs 
revision.

Also, it looks to me like something is wrong with kgs:230.  Is it loading 
the wrong sgf or something?

Evan Daniel

Index: patterns/endgame.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/endgame.db,v
retrieving revision 1.60
diff -u -d -r1.60 endgame.db
--- patterns/endgame.db 3 Mar 2004 22:14:12 -0000       1.60
+++ patterns/endgame.db 7 Sep 2004 02:13:56 -0000
@@ -989,6 +989,26 @@
 :8,OXe,terri(0.1)


+Pattern EE806
+# evand new (3.7.1)
+# see kgs:70
+
+|.O??
+|.OX.
+|.*X.
+|....
++----
+
+:8,OXe,terri(3)
+
+|bO??
+|.OX.
+|.*Xa
+|....
++----
+
+;xmoyo(a) && omoyo(b)
+
 # second line extensions
 ########################

@@ -1639,6 +1659,79 @@
 :8,OX,maxterri(0.1)


+Pattern CE34
+# evand New pattern. (3.7.1)
+# see endgame:920
+
+?OO
+...
+O*X
+
+:8,OXe,terri(1)
+
+?OO
+a..
+O*X
+
+;xmoyo(a)
+
+
+Pattern CE35a
+# evand New pattern. (3.7.1)
+# see endgame:850
+
+?X??
+.*.o
+O..O
+?..?
+
+:8,OXe
+
+?X??
+.*.o
+O..O
+?ab?
+
+;omoyo(a) || omoyo(b)
+
+
+Pattern CE35b
+# evand New pattern. (3.7.1)
+# see endgame:850
+
+?X??
+*..o
+O..O
+?..?
+
+:8,OXe
+
+?X??
+.*.o
+O..O
+?ab?
+
+;omoyo(a) || omoyo(b)
+
+
+Pattern CE35c
+# evand New pattern. (3.7.1)
+# see endgame:850
+
+?X??
+..*o
+O..O
+?..?
+
+:8,OXe
+
+?X??
+.*.o
+O..O
+?ab?
+
+;omoyo(a) || omoyo(b)
+
 ######################################################################
 #
 # Center followup patterns
Index: patterns/patterns.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/patterns.db,v
retrieving revision 1.129
diff -u -d -r1.129 patterns.db
--- patterns/patterns.db        22 Aug 2004 13:07:31 -0000      1.129
+++ patterns/patterns.db        7 Sep 2004 02:13:59 -0000
@@ -1254,6 +1254,7 @@

 Pattern CC81
 # db added (3.1.4)
+# evand modified (3.7.1) -- see endgame:910

 O*X
 XO?
@@ -1265,7 +1266,7 @@
 XO?
 ?O?

-; does_attack(*,a)
+; does_attack(*,a) && lib(a) > 1


 Pattern CC82
@@ -9266,6 +9267,28 @@
 :8,OXe


+Pattern CB343
+# evand New pattern. (3.7.1)
+# is there a better way to do this than r_followup, followup, and terri?
+# see gifu03:202
+
+xX..
+..*.
+....
+..Oo
+....
+
+:8,OXe,reverse_followup(2),followup(1),terri(3)
+
+xXde
+..*.
+....
+..Oo
+.abc
+
+;omoyo(a) && omoyo(b) && omoyo(c) && xmoyo(d) && xmoyo(e)
+
+
 ######################################################################
 #
 # Edge defend/attack patterns