(;GM[1]FF[4]SZ[19]
GN[White can't avoid ko]
PC[http://senseis.xmp.net/?BiggestKnownEyeSpaceForWhichThereIsANakade/Solution2]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BiggestKnownEyeSpaceForWhichThereIsANakade/Solution2

White can't avoid ko]
PL[W]

AB[ad][ae][af][cf][ag][cg][ah][bh][dh][di][dj][ck][ek][bl][dl][fl][em][an][bn]
AW[cc][ec][cd][be][ee][bf][bg][dg][eg][fh][ej][fj][cl][gl][bm][dm][fm][gm][cn][dn][bo][fo][cp]
LB[ci:a][al:b]

;W[cm]C[W1]MN[1]
;B[bj]C[B2]MN[2]

;LB[ci:a][al:b]
)
