(;GM[1]FF[4]SZ[19]
GN[Black mistake]
PC[https://senseis.xmp.net/?ShikatsuMyokiTsumegoSeries86/Solution]AP[GoWiki:2009]
DT[2023-01-29]
C[Diagram from https://senseis.xmp.net/?ShikatsuMyokiTsumegoSeries86/Solution

Black mistake]
PL[W]

AB[pa][mb][pb][mc][oc][nd][od][pd][qd][og][qg][rg]
AW[nb][ob][qb][nc][pc][qc][qh]

;W[rd]C[W1]MN[1]
;B[rb]C[B2]MN[2]
;W[rc]C[W3]MN[3]
;B[qa]C[B4]MN[4]
;W[ra]C[W5]MN[5]
;B[sa]C[B6]MN[6]
;W[sb]C[W7]MN[7]
;B[sc]C[B8]MN[8]
;W[sd]C[W9]MN[9]

;
)
