(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?IgoHatsuyoRonProblem129/Solution]AP[GoWiki:2009]
DT[2009-04-23]
C[Diagram from http://senseis.xmp.net/?IgoHatsuyoRonProblem129/Solution

Solution]
PL[W]

AB[oa][pa][kb][ob][jc][lc][nc][oc][jd][ld][nd][pd][ke][oe][pe][kf][lf][nf][og]
AW[na][qa][ib][mb][nb][pb][rb][ic][mc][pc][rc][id][kd][md][qd][le][me][ne][qe][qf][pg]

;B[od]C[B16]MN[16]
;W[of]C[W17]MN[17]

;
)
