(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem169/Solution]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem169/Solution

Solution]
PL[B]

AB[nb][jc][nc][rc][md][nd][od][qd][rd][le][oe][pe][kf][lf][pf][qf][rf][rg][el][dm][cn][co][cp][bq][cq][eq][br][bs]
AW[na][mb][ob][rb][sb][kc][mc][oc][pc][qc][ld][pd][je][ke][me][mf][of][mg][og][pg][qg][rh][ci][qi][ck][bm][cm][dn][do][ep][fp][dq][cr][er][cs]

;B[qb]C[B1]MN[1]
;W[qa]C[W2]MN[2]
;B[sc]C[B3]MN[3]
;W[ap]C[W4]MN[4]
;B[ao]C[B5]MN[5]
;W[bo]C[W6]MN[6]
;B[bn]C[B7]MN[7]
;W[an]C[W8]MN[8]
;B[cl]C[B9]MN[9]
;W[bl]C[W10]MN[10]

;
)
