(;GM[1]FF[4]SZ[19]
GN[Solution: Ko]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem212a/Solution]AP[GoWiki:2009]
DT[2023-02-10]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem212a/Solution

Solution: Ko]
PL[W]

AB[bn][cn][do][bp][cp][cq][br][cr]
AW[dl][am][bm][cm][dn][en][fo][dp][ep][dr][er][cs]

;W[aq]C[W1]MN[1]
;B[bs]C[B2]MN[2]
;W[an]C[W3]MN[3]
;B[ao]C[B4]MN[4]
;W[ar]C[W5]MN[5]
;B[co]C[B6]MN[6]
;W[ap]C[W7]MN[7]
;B[bq]C[B8]MN[8]

;
)
