[gnugo-devel] tuning patch

[Gunnar Farnebäck]

This tuning patch tries to improve the ability to block on the right
side after a 3-3 invasion under 4-4. It also avoids blocking on the
third line on the edge when it's not urgent. Regression results:

nngs:990        PASS C9 [C9]
trevorc:1180    PASS L10 [L10]
nngs4:485       PASS D17 [D17]
3 PASS
Total nodes: 1644431688 3037274 12992492 (+0.021% -0.00063% +0.00018%)

All of these are relevant and good.

- tuning

/Gunnar

Index: patterns/fuseki.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/fuseki.db,v
retrieving revision 1.41
diff -u -r1.41 fuseki.db
--- patterns/fuseki.db  13 Sep 2004 10:45:11 -0000      1.41
+++ patterns/fuseki.db  20 Oct 2004 20:01:43 -0000
@@ -2052,17 +2052,88 @@
 
 
 Pattern J7
+# gf Made pattern more specific. (3.7.1)
+# See trevorc:1180.
 
-|......           block after 3-3 invasion
-|......
-|...O..
-|..X*..
-|......
-|......
-+------
+|...........       block after 3-3 invasion
+|...........
+|...O....ooo
+|..X*....ooo
+|...........
+|...........
++-----------   
+
+:8,sFedJ
+
+|...........
+|...........
+|...O....abc
+|..X*....def
+|...........
+|...........
++-----------   
+
+;o_somewhere(a,b,c,d,e,f)
+
+
+Pattern J7b
+# gf New pattern. (3.7.1)
+# See arend:28.
+
+|..oo.......
+|...........
+|..X........       block after 3-3 invasion
+|...........
+|...O....ooo
+|..X*....ooo
+|...........
+|...........
++-----------   
 
 :8,sFedJ
 
+|..gh.......
+|...........
+|..X........
+|...........
+|...O....abc
+|..X*....def
+|...........
+|...........
++-----------   
+
+;o_somewhere(a,b,c,d,e,f) && o_somewhere(g,h)
+
+
+Pattern J7c
+# gf New pattern. (3.7.1)
+
+|..oo.......
+|...........
+|...........
+|..X........       block after 3-3 invasion
+|...........
+|...O.....oo
+|..X*.....oo
+|...........
+|...........
++-----------   
+
+:8,sFedJ
+
+|..ef.......
+|...........
+|...........
+|..X........
+|...........
+|...O.....ab
+|..X*.....cd
+|...........
+|...........
++-----------   
+
+;o_somewhere(a,b,c,d) && o_somewhere(e,f)
+
 
 Pattern J8
 
Index: patterns/hoshi_other.sgf
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/hoshi_other.sgf,v
retrieving revision 1.5
diff -u -r1.5 hoshi_other.sgf
--- patterns/hoshi_other.sgf    22 Aug 2004 20:48:36 -0000      1.5
+++ patterns/hoshi_other.sgf    20 Oct 2004 20:01:43 -0000
@@ -134,7 +134,7 @@
 )
 )
 
-(;W[qc];B[qd]C[S]MA[nf];W[pc]C[S]MA[nf];B[oc]MA[nf]C[S]
+(;W[qc];B[qd];W[pc]C[S]MA[nf];B[oc]MA[nf]C[S]
 (;W[ob]MA[nf]C[S];B[nc]MA[mf]C[S];W[nb]MA[mf]C[S];B[mc]MA[lf]C[S];
 W[rd]MA[nf]C[S];B[re]MA[ng]C[S];W[rc]MA[nf]C[S];B[qf]MA[mg]C[S])
 
Index: patterns/patterns.db
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/patterns.db,v
retrieving revision 1.131
diff -u -r1.131 patterns.db
--- patterns/patterns.db        13 Sep 2004 10:45:12 -0000      1.131
+++ patterns/patterns.db        22 Sep 2004 15:40:26 -0000
@@ -13369,6 +13369,7 @@
 
 Pattern EJ91
 # db New pattern (3.1.26)
+# gf Demoted from J to j. See e.g. trevorc:1180 and nngs4:485. (3.7.1)
 
 ?.....         large block affecting stability of both
 ..O.oo
@@ -13377,7 +13379,7 @@
 ......
 ------
 
-:8,J
+:8,j
 
 
 Pattern EJ92