(;GM[1]FF[4]SZ[19]
GN[Variation]
PC[https://senseis.xmp.net/?GokyoShumyoSection2Problem13/Solution]AP[GoWiki:2009]
DT[2023-01-07]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection2Problem13/Solution

Variation]
PL[W]

AB[db][cc][ec][bd][cd][ed]
AW[eb][fb][fc][fd][be][ce][ee][ef][cg]
LB[fa:a]

;W[bb]C[W1]MN[1]
;B[dd]C[B2]MN[2]
;W[da]C[W3]MN[3]
;B[ca]C[B4]MN[4]
;W[cb]C[W5]MN[5]
;B[ea]C[B6]MN[6]
;W[ba]C[W7]MN[7]

;LB[fa:a]
)
