(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?GokyoShumyoSection4Problem77/Solution]AP[GoWiki:2009]
DT[2012-11-19]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection4Problem77/Solution

Solution]
PL[W]

AB[eb][cc][ec][gc][hc][ed][hd][fe][ge]
AW[fb][fc][ic][fd][id][ee][ie][ef][ff][hf]

;W[ga]C[W1]MN[1]
;B[hb]C[B2]MN[2]
;W[ib]C[W3]MN[3]
;B[ha]C[B4]MN[4]
;W[he]C[W5]MN[5]
;B[gd]C[B6]MN[6]
;W[gf]C[W7]MN[7]

;
)
