(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[https://senseis.xmp.net/?GokyoShumyoSection3Problem13/Solution]AP[GoWiki:2009]
DT[2023-01-01]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection3Problem13/Solution

Solution]
PL[B]

AB[eb][bc][dc][dd]
AW[fb][ec][gc][bd][ed][ce][de]

;B[cb]C[B1]MN[1]
;W[cd]C[W2]MN[2]
;B[ba]C[B3]MN[3]
;W[ab]C[W4]MN[4]
;B[ac]C[B5]MN[5]
;W[ea]C[W6]MN[6]
;B[da]C[B7]MN[7]

;
)
