(;GM[1]FF[4]SZ[19]
GN[ko]
PC[https://senseis.xmp.net/?GokyoShumyoSection3Problem48/Solution]AP[GoWiki:2009]
DT[2023-01-03]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection3Problem48/Solution

ko]
PL[B]

AB[ec][fc][hc][bd][ce][ee][cf][df][ef]
AW[bc][dc][cd][dd][de]

;B[bb]C[B1]MN[1]
;W[be]C[W2]MN[2]
;B[db]C[B3]MN[3]
;W[cb]C[W4]MN[4]
;B[ca]C[B5]MN[5]
;W[eb]C[W6]MN[6]
;B[cc]C[B7]MN[7]

;
)
