(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem73/Solution]AP[GoWiki:2009]
DT[2015-08-13]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem73/Solution

Solution]
PL[B]

AB[bj][bk][bl][bm][cm][dn][do][eo][fo][fp][gp][jp][iq][jq][lq][kr]
AW[bi][ci][cj][ej][cl][dl][fl][hm][fn][bo][co][go][ho][dp][ip][dq][fq][hq][fr][ir][jr]

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

;
)
