(;GM[1]FF[4]SZ[19]
GN[Black to move]
PC[https://senseis.xmp.net/?GokyoSeimyoVolume3Problem38/Solution]AP[GoWiki:2009]
DT[2023-02-15]
C[Diagram from https://senseis.xmp.net/?GokyoSeimyoVolume3Problem38/Solution

Black to move]
PL[B]

AB[db][eb][ec][ed][ee][df][dg][ch][ci][bj][cj]
AW[ca][cb][dc][dd][de][cf][cg][bh][bi]
CR[bh][bi]
LB[ag:a]

;B[ce]C[B1]MN[1]
;W[be]C[W2]MN[2]
;B[bg]C[B3]MN[3]
;W[bf]C[W4]MN[4]
;B[cc]C[B5]MN[5]
;W[cd]C[W6]MN[6]
;B[bc]C[B7]MN[7]
;W[bb]C[W8]MN[8]
;B[bd]C[B9]MN[9]

;CR[bh][bi]
LB[ag:a]
)
