(;GM[1]FF[4]SZ[19]
GN[unexpected ko]
PC[https://senseis.xmp.net/?GokyoShumyoSection3Problem47/Solution]AP[GoWiki:2009]
DT[2023-01-02]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection3Problem47/Solution

unexpected ko]
PL[W]

AB[fb][ec][hc][cd][dd][ed][fd][gd][hd]
AW[bb][cc][fc][ic][jc][bd][ce][fe][he][ie][je][df][ff]

;W[ia]C[W1]MN[1]
;B[db]C[B2]MN[2]
;W[ea]C[W3]MN[3]
;B[gb]C[B4]MN[4]
;W[da]C[W5]MN[5]
;B[ib]C[B6]MN[6]
;W[jb]C[W7]MN[7]
;B[ha]C[B8]MN[8]

;
)
