(;GM[1]FF[4]SZ[13]
GN[W4, B7 take ko, B9 closes ko]
PC[http://www.go4go.net/]
AP[GoWiki:2009]
DT[2016-09-29]
C[Diagram from http://www.go4go.net/

W4, B7 take ko, B9 closes ko]
PL[B]

AB[da][ea][fa][ga][ha][ia][ja][la][jb][kb][lb][mb][dc][ec][gc][hc][ed][gd][hd][jd][kd][je][ke][af][bf][cf][df][ef][ff][kf][cg][fg][ah][ch][fh][hh][ih][jh][kh][ci][di][ei][fi][hi][ki][li][cj][kj][ck][jk][kk][lk][cl][dl][el][fl][gl][hl][il][jl][fm][hm][jm]
AW[ca][cb][fb][ib][cc][fc][ic][lc][mc][cd][fd][id][ld][ae][be][ce][de][ee][fe][ge][ie][le][gf][hf][if][lf][ag][bg][gg][ig][jg][kg][lg][gh][lh][mh][ai][bi][gi][ii][ji][mi][bj][dj][ej][gj][ij][jj][lj][bk][dk][ek][gk][ik][mk][al][bl][kl][ll][ml][bm][dm][km]
CR[lj]

;B[mj]C[B1]MN[1]
;W[jc]C[W2]MN[2]
;B[kc]C[B3]MN[3]
;B[hj]C[B5]MN[5]
;W[hk]C[W6]MN[6]
;W[gb]C[W8]MN[8]
;W[hb]C[W10]MN[10]

;CR[lj]
)
