(;GM[1]FF[4]SZ[20:19]
GN[Black advantage (There are unseen ko threats.)]
PC[http://senseis.xmp.net/?TenThousandYearKo/complexExample]AP[GoWiki:2009]
DT[2010-07-19]
C[Diagram from http://senseis.xmp.net/?TenThousandYearKo/complexExample

Black advantage (There are unseen ko threats.)]
PL[B]

AB[ba][ca][fa][fb][pb][qb][rb][sb][ec][fc][ad][cd][dd][ed][ae][be][af][bf][df]
AW[aa][ea][oa][bb][db][eb][ob][ac][bc][cc][dc][oc][pc][qc][rc][sc][bd]
CR[aa]

;B[ab]C[B1]MN[1]
;B[cb]C[B3]MN[3]
;B[pa]C[B5]MN[5]
;W[da]C[W6]MN[6]
;B[ra]C[B7]MN[7]

;CR[aa]
)
