(;GM[1]FF[4]SZ[9]
GN[Unremovable ko for both sides]
PC[http://senseis.xmp.net/?UnremovableKo]AP[GoWiki:2009]
DT[2011-05-18]
C[Diagram from http://senseis.xmp.net/?UnremovableKo

Unremovable ko for both sides]
PL[B]

AB[ca][ea][fa][cb][fb][cc][dc][ec][fc][ic][cd][dd][ed][fd][gd][hd][id][af][bf][cf][df][ff][gf][hf][if][bg][cg][dg][fg][ig][ah][dh][fh][gh][ih][di][fi]
AW[ba][da][ha][ab][bb][db][gb][hb][ib][bc][gc][hc][ad][bd][ae][be][ce][de][ee][fe][ge][he][ie][ef][eg][gg][hg][bh][eh][hh][ai][bi][ei][hi]
LB[ag:a]


;LB[ag:a]
)
