(;GM[1]FF[4]SZ[19]
GN[Solution.]
PC[http://senseis.xmp.net/?BeginnerExercise238/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise238/Solution

Solution.]
PL[W]

AB[gb][bc][dc][gc][cd][dd][ed][fd][fe][df][ff][dg][eg][bh][ch][bi][fi][cj][dk]
AW[bb][cb][db][hb][cc][ec][fc][hc][bd][gd][id][be][ge][cf][ef][gf][cg][dh][eh][gh][ih][ci][gi][fj]
LB[ce:b][fh:a]

;W[fg]C[W1]MN[1]
;B[de]C[B2]MN[2]
;W[fb]C[W3]MN[3]

;LB[ce:b][fh:a]
)
