[gnugo-devel] Hoshi joseki fix

[Evan Berggren Daniel]

In the game gnugo-3.3.17-sanko-200303240622.sgf, gnugo played an
inappropriate variation in the upper right.  This patch makes gnugo aware
of the ladder, and adds an alternative.

Evan Daniel

Index: patterns/hoshi.sgf
===================================================================
RCS file: /cvsroot/gnugo/gnugo/patterns/hoshi.sgf,v
retrieving revision 1.21
diff -u -d -r1.21 hoshi.sgf
--- patterns/hoshi.sgf  17 Mar 2003 21:57:27 -0000      1.21
+++ patterns/hoshi.sgf  24 Mar 2003 06:22:53 -0000
@@ -129,15 +129,28 @@
 ]MA[mi])

 (;B[qh]C[S]MA[mj]
-(;W[qc]C[S]MA[mj];B[qe]C[S]MA[mj];W[re]C[S]MA[mj];B[pf]C[S]MA[lj];
-W[pg]C[S;D]MA[mj]
-(;B[qg]C[S]MA[mj];W[rf]C[S]MA[mj];B[og]C[S]MA[mj];W[tt]MA[mj];B[ph]
-C[S]MA[mj])
+(;W[qc]C[S]MA[mj];B[qe]C[S]MA[mj];W[re]C[S]MA[mj];B[pf]C[S]MA[lj]
+(;W[pg]C[;!xplay_attack(A,B)
+]MA[mj]LB[qg:A][pg:B]
+(;B[qg]C[S]MA[mj];W[rf]C[S]MA[mj]
+(;B[og]C[S]MA[mj];W[tt]MA[mj];B[ph]C[S]MA[mj])
+
+(;B[of])
+)

 (;B[of]MA[mi]C[A
 ])
 )

+(;W[nb]MA[lj];B[rf]MA[lj];W[oc]MA[lj])
+
+(;W[ob]C[j
+]MA[lj];B[rf]MA[lj])
+
+(;W[rf]C[0
+];B[pg]MA[lj])
+)
+
 (;W[of]C[0];B[qc]C[S]MA[mj])
 )