(;GM[1]FF[4]SZ[19]
GN[Black to play]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem19]AP[GoWiki:2009]
DT[2023-01-30]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem19

Black to play]
PL[B]

AB[oa][ib][kb][ob][fc][kc][mc][pc][qc][gd][nd][fe][oe][qf]
AW[mb][nb][pb][gc][hc][jc][oc][rc][kd][ld][md][rd][ne][qe][nf][pf][pg][qj]
CR[fc][gc]


;CR[fc][gc]
)
