(;GM[1]FF[4]SZ[19]
GN[Ko]
PC[https://senseis.xmp.net/?GokyoShumyoSection3Problem16/Solution]AP[GoWiki:2009]
DT[2023-01-02]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection3Problem16/Solution

Ko]
PL[B]

AB[gb][cc][dc][fc]
AW[hb][bc][gc][ic][cd][gd][be][ee]

;B[bb]C[B1]MN[1]
;W[ab]C[W2]MN[2]
;B[eb]C[B3]MN[3]
;W[ed]C[W4]MN[4]
;B[da]C[B5]MN[5]
;W[ga]C[W6]MN[6]
;B[fa]C[B7]MN[7]

;
)
