(;GM[1]FF[4]SZ[16:10]
GN[Quadruple ko stones cycle]
PC[http://senseis.xmp.net/?Cycle]AP[GoWiki:2009]
DT[2019-01-15]
C[Diagram from http://senseis.xmp.net/?Cycle

Quadruple ko stones cycle]
PL[B]

AB[aa][da][ab][cb][eb][fb][gb][hb][ac][bc][cc][dc][ic][jc][kc][lc][id][kd][md][nd][od][pd][ie][je][ke][le][me][ne][bf][cf][df][ff][gf][hf][if][eg][fg][gg][hg][ig][mg][ah][bh][ch][eh][fh][jh][lh][nh][ai][ci][ei][ji][ki][li][mi][ni][oi][bj][cj][ej][oj][pj]
AW[ha][ma][pa][ib][jb][kb][lb][nb][pb][ec][fc][gc][hc][mc][nc][oc][pc][ad][bd][cd][dd][fd][hd][ae][be][ce][de][ee][fe][ge][he][oe][pe][af][ef][jf][kf][lf][mf][nf][of][ag][bg][cg][jg][lg][ng][pg][dh][gh][hh][ih][kh][oh][di][fi][gi][ii][pi][dj][fj][hj][ij][jj][kj][lj][mj][nj]

;B[ph]C[B1]MN[1]
;W[ga]C[W2]MN[2]
;B[og]C[B3]MN[3]
;W[fa]C[W4]MN[4]
;B[pf]C[B5]MN[5]
;W[ea]C[W6]MN[6]
;B[ia]C[B7]MN[7]

;
)
