(;GM[1]FF[4]SZ[19]
GN[Variation 1]
PC[http://senseis.xmp.net/?HitachiNumber9/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?HitachiNumber9/Solution

Variation 1]
PL[B]

AB[dc][ec][fc][gc][bd][cd][gd][be][ge][ff][gg]
AW[cb][hb][cc][ic][dd][ed][fd][ce][ie][bf][cf][ef][gf][hf][dg]
LB[fe:c]

;B[de]C[B1]MN[1]
;W[ee]C[W2]MN[2]
;B[eg]C[B3]MN[3]

;LB[fe:c]
)
