(;GM[1]FF[4]SZ[19]
GN[Continued: ko]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem18/Solution]AP[GoWiki:2009]
DT[2023-01-30]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem18/Solution

Continued: ko]
PL[B]

AB[la][kb][mb][qb][lc][nc][oc][pc][qc][ld][nd]
AW[na][ob][rb][ic][jc][kc][mc][rc][hd][kd][md][pd][qd][le][me][ne][lf][pf]

;B[jb]C[B11]MN[11]
;W[ib]C[W12]MN[12]
;B[ja]C[B13]MN[13]
;W[pa]C[W14]MN[14]
;B[qa]C[B15]MN[15]
;W[nb]C[W16]MN[16]
;B[pb]C[B17]MN[17]
;W[od]C[W18]MN[18]

;
)
