(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?IgoHatsuyoRonProblem149/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?IgoHatsuyoRonProblem149/Solution

Solution]
PL[W]

AB[qb][rb][lc][mc][qc][nd][od][pd][rd][ne][pe][of][ng][og][nh][oh][ni][pi]
AW[nb][pb][nc][pc][md][qd][me][qe][mf][nf][pf][qf][mg][mh][qh][mi][oi][nj]

;W[oc]C[W11]MN[11]
;B[oe]C[B12]MN[12]
;W[oj]C[W13]MN[13]
;B[ph]C[B14]MN[14]
;W[qj]C[W15]MN[15]
;B[qi]C[B16]MN[16]
;W[ri]C[W17]MN[17]
;B[rh]C[B18]MN[18]
;W[pj]C[W19]MN[19]
;B[qg]C[B20]MN[20]

;
)
