(;GM[1]FF[4]SZ[19]
GN[Ko]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem78/Solution]AP[GoWiki:2009]
DT[2023-02-01]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem78/Solution

Ko]
PL[W]

AB[mb][kc][mc][nc][qc][qd][ne]
AW[ib][jb][id][ld][md][nd][rd][je][pe][qe][rf]

;W[oc]C[W1]MN[1]
;B[ob]C[B2]MN[2]
;W[pc]C[W3]MN[3]
;B[pb]C[B4]MN[4]
;W[rb]C[W5]MN[5]
;B[qb]C[B6]MN[6]
;W[ma]C[W7]MN[7]
;B[lb]C[B8]MN[8]
;W[oa]C[W9]MN[9]
;B[na]C[B10]MN[10]

;
)
