(;GM[1]FF[4]SZ[19]
GN[Ko]
PC[https://senseis.xmp.net/?GokyoSeimyoVolume3Problem42/Solution]AP[GoWiki:2009]
DT[2023-02-16]
C[Diagram from https://senseis.xmp.net/?GokyoSeimyoVolume3Problem42/Solution

Ko]
PL[W]

AB[bb][db][fb][gb][ec][fc][cd][dd][ce][df][dg][ch]
AW[hb][bc][cc][dc][gc][ic][ed][fd][gd][de][ee]
LB[ab:a]

;W[cf]C[W1]MN[1]
;B[bf]C[B2]MN[2]
;W[cb]C[W3]MN[3]
;B[ca]C[B4]MN[4]
;W[ba]C[W5]MN[5]
;B[aa]C[B6]MN[6]
;W[be]C[W7]MN[7]
;B[cg]C[B8]MN[8]
;W[ad]C[W9]MN[9]

;LB[ab:a]
)
