(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?BeginnerExercise306/Solution]AP[GoWiki:2009]
DT[2009-11-25]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise306/Solution

Solution]
PL[W]

AB[ja][ka][ma][qa][ra][kb][mb][nb][qb][lc][mc][oc][pc]
AW[ia][hb][jb][rb][jc][kc][nc][qc][rc][ld][md][nd][od][pd]

;W[ob]C[W1]MN[1]
;B[pb]C[B2]MN[2]
;W[oa]C[W3]MN[3]

;
)
