(;GM[1]FF[4]SZ[19]
GN[White to play]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem22/Solution]AP[GoWiki:2009]
DT[2023-01-30]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem22/Solution

White to play]
PL[W]

AB[na][pb][sb][ic][jc][pc][rc][md][pd][ke][me][qe][kf][nf][pf][qg]
AW[kb][mb][nb][kc][oc][ld][od][qd][rd][oe][pe]

;W[re]C[W1]MN[1]
;B[qf]C[B2]MN[2]
;W[ob]C[W3]MN[3]
;B[oa]C[B4]MN[4]
;W[kd]C[W5]MN[5]
;B[jd]C[B6]MN[6]
;W[mc]C[W7]MN[7]
;B[nd]C[B8]MN[8]
;W[jb]C[W9]MN[9]
;B[ib]C[B10]MN[10]

;
)
