(;GM[1]FF[4]SZ[19]
GN[Original Solution]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem237/Solution]AP[GoWiki:2009]
DT[2023-01-27]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem237/Solution

Original Solution]
PL[B]

AB[am][bm][cm][em][dn][eo][ep][eq][dr]
AW[an][bn][cn][cp][dp][br]

;B[cr]C[B1]MN[1]
;W[bs]C[W2]MN[2]
;B[bq]C[B3]MN[3]
;W[cq]C[W4]MN[4]
;B[bp]C[B5]MN[5]
;W[bo]C[W6]MN[6]
;B[co]C[B7]MN[7]

;
)
