(;GM[1]FF[4]SZ[19]
GN[Overplay]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem137/Solution]AP[GoWiki:2009]
DT[2023-01-27]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem137/Solution

Overplay]
PL[B]

AB[bj][bl][cl][dl][dm][fm][gn][hn][cp][dp][ep][gp][hp][bq][dq][eq][iq][cr][fr][gr][hr][ir]
AW[al][bm][cm][dn][bo][co][do][eo][fo][bp][fp][ip][jp][aq][fq][gq][hq][jq][br][jr]

;B[cq]C[B1]MN[1]
;W[bs]C[W2]MN[2]
;B[ar]C[B3]MN[3]
;W[ap]C[W4]MN[4]
;B[an]C[B5]MN[5]
;W[ds]C[W6]MN[6]
;B[cs]C[B7]MN[7]
;W[er]C[W8]MN[8]
;B[as]C[B9]MN[9]

;
)
