(;GM[1]FF[4]SZ[19]
GN[after white (a) black (b) makes ko]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem185/Attempts]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem185/Attempts

after white (a) black (b) makes ko]
PL[B]

AB[fn][gn][hn][fo][ho][cp][dp][ep][fp][gp][hp][bq][cq][hq][cr]
AW[cm][fm][gm][hm][en][in][bo][co][eo][jo][bp][aq][dq][eq][fq][gq][jq][br][hr][jr]
LB[cs:a][ds:b]

;B[gr]C[B1]MN[1]
;W[fr]C[W2]MN[2]
;B[dr]C[B3]MN[3]
;W[gs]C[W4]MN[4]
;B[er]C[B5]MN[5]
;W[es]C[W6]MN[6]
;B[ar]C[B7]MN[7]
;W[as]C[W8]MN[8]
;B[bs]C[B9]MN[9]

;LB[cs:a][ds:b]
)
