(;GM[1]FF[4]SZ[19]
GN[Variation]
PC[https://senseis.xmp.net/?GokyoShumyoSection6Problem71/Solution]AP[GoWiki:2009]
DT[2023-01-22]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection6Problem71/Solution

Variation]
PL[B]

AB[dc][ec][fc][kc][lc][jd][de][ee][ff][gf]
AW[cc][hc][bd][fd][kd][ce][ge][he][je][cf][eg][fh][hh]
LB[ic:a]

;B[hf]C[B1]MN[1]
;W[if]C[W2]MN[2]
;B[id]C[B3]MN[3]
;W[hd]C[W4]MN[4]
;B[ig]C[B5]MN[5]
;W[jg]C[W6]MN[6]
;B[ie]C[B7]MN[7]
;W[jf]C[W8]MN[8]
;B[ib]C[B9]MN[9]
;W[hb]C[W10]MN[10]

;LB[ic:a]
)
