(;GM[1]FF[4]SZ[19]
GN[Black to play]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem72/Solution]AP[GoWiki:2009]
DT[2023-02-03]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem72/Solution

Black to play]
PL[B]

AB[ja][ka][la][ma][na][oa][pa][gb][jb][kb][lb][mb][qb][hc][ic][kc][nc][qc][rc][md][nd][je][le][me][pe][nf][of][qf]
AW[ia][qa][sa][ib][nb][ob][pb][rb][jc][mc][oc][kd][od][ne][oe][kf][lf][mf]
CR[mc]

;B[lc]C[B1]MN[1]
;W[ld]C[W2]MN[2]
;B[ke]C[B3]MN[3]

;CR[mc]
)
