(;GM[1]FF[4]SZ[19]
GN[Black kills]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem273/Solution]AP[GoWiki:2009]
DT[2023-02-08]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem273/Solution

Black kills]
PL[B]

AB[hn][in][jn][bo][eo][go][ko][cp][gp][kp][iq][kq][cr][dr][kr][mr]
AW[hp][jp][dq][eq][fq][gq][hq][jq][jr]

;B[ir]C[B1]MN[1]
;W[is]C[W2]MN[2]
;B[er]C[B3]MN[3]
;W[fr]C[W4]MN[4]
;B[fs]C[B5]MN[5]
;W[gs]C[W6]MN[6]
;B[ip]C[B7]MN[7]
;W[io]C[W8]MN[8]
;B[hr]C[B9]MN[9]
;W[hs]C[W10]MN[10]

;
)
