(;GM[1]FF[4]SZ[19]
GN[Black to move]
PC[https://senseis.xmp.net/?GokyoSeimyoVolume3Problem54/Solution]AP[GoWiki:2009]
DT[2023-02-16]
C[Diagram from https://senseis.xmp.net/?GokyoSeimyoVolume3Problem54/Solution

Black to move]
PL[B]

AB[go][cp][dp][ep][fp][dq][gq][dr][gr]
AW[fn][gn][bo][co][do][fo][io][bq][hq][jq][cr][hr]

;B[bp]C[B1]MN[1]
;W[ap]C[W2]MN[2]
;B[bs]C[B3]MN[3]
;W[br]C[W4]MN[4]
;B[er]C[B5]MN[5]
;W[ds]C[W6]MN[6]
;B[fq]C[B7]MN[7]
;W[fs]C[W8]MN[8]
;B[gs]C[B9]MN[9]
;W[es]C[W10]MN[10]

;
)
