(;GM[1]FF[4]SZ[19]
GN[White to play]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem87/Solution]AP[GoWiki:2009]
DT[2023-02-01]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem87/Solution

White to play]
PL[W]

AB[pb][rb][pd][oe][qe][qf]
AW[ob][mc][oc][qc][od][me][nf][of][pg][qh][qk]

;W[pc]C[W1]MN[1]
;B[rc]C[B2]MN[2]
;W[rg]C[W3]MN[3]
;B[rf]C[B4]MN[4]
;W[sf]C[W5]MN[5]
;B[se]C[B6]MN[6]
;W[rd]C[W7]MN[7]
;B[qd]C[B8]MN[8]
;W[ra]C[W9]MN[9]
;B[qb]C[B10]MN[10]

;
)
