(;GM[1]FF[4]SZ[19]
GN[Black to play]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem160/Attempts]AP[GoWiki:2009]
DT[2015-10-04]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem160/Attempts

Black to play]
PL[B]

AB[bm][an][dn][en][bo][co][eo][ep][gp][hp][ip][jp][bq][cq][eq][fq][kq][lq][er][lr]
AW[ao][do][ap][bp][cp][dp][dq][gq][hq][iq][jq][dr][fr][ir][kr][es][js]

;B[cr]C[B1]MN[1]
;W[bs]C[W2]MN[2]
;B[aq]C[B3]MN[3]
;W[ds]C[W4]MN[4]
;B[cs]C[B5]MN[5]
;W[fs]C[W6]MN[6]
;B[gr]C[B7]MN[7]

;
)
