(;GM[1]FF[4]SZ[19]
GN[Black to play]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem148/Solution]AP[GoWiki:2009]
DT[2023-02-03]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem148/Solution

Black to play]
PL[B]

AB[ib][ic][lc][ld][md][nd][od][rd][ie][oe][qe][mf][ph]
AW[jb][lb][mb][jc][mc][nc][oc][rc][pd][qd][ke][of][qf][lg][mg][ng]

;B[pe]C[B1]MN[1]
;W[qg]C[W2]MN[2]
;B[rf]C[B3]MN[3]
;W[rg]C[W4]MN[4]
;B[jd]C[B5]MN[5]
;W[kd]C[W6]MN[6]
;B[kc]C[B7]MN[7]
;W[je]C[W8]MN[8]
;B[kb]C[B9]MN[9]
;W[ja]C[W10]MN[10]

;
)
