(;GM[1]FF[4]SZ[19]
GN[White wins]
PC[https://senseis.xmp.net/?GokyoShumyoSection4Problem25/Solution]AP[GoWiki:2009]
DT[2022-12-29]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection4Problem25/Solution

White wins]
PL[W]

AB[gb][bc][cc][dc][cd][ed][fd][ce]
AW[eb][ec][bd][dd][be][de][cf][ef]

;W[bb]C[W1]MN[1]
;B[ad]C[B2]MN[2]
;W[af]C[W3]MN[3]
;B[cb]C[B4]MN[4]
;W[ab]C[W5]MN[5]
;B[ba]C[B6]MN[6]
;W[ae]C[W7]MN[7]
;B[ac]C[B8]MN[8]
;W[da]C[W9]MN[9]

;
)
