(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem81/Solution]AP[GoWiki:2009]
DT[2023-02-05]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem81/Solution

Solution]
PL[B]

AB[bn][cn][dn][en][eo][bp][fp][gp][eq][hq][iq][jq][br]
AW[do][dp][ep][cq][fq][gq][fr][hr]
LB[hs:a]

;B[er]C[B1]MN[1]
;W[gs]C[W2]MN[2]
;B[es]C[B3]MN[3]
;W[fs]C[W4]MN[4]
;B[is]C[B5]MN[5]
;W[ir]C[W6]MN[6]
;B[jr]C[B7]MN[7]
;W[dr]C[W8]MN[8]
;B[js]C[B9]MN[9]
;W[ds]C[W10]MN[10]

;LB[hs:a]
)
