(;GM[1]FF[4]SZ[19]
GN[3: pass for lower ko, 4 pass for upper ko]
PC[http://senseis.xmp.net/?AntiSeki]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?AntiSeki

3: pass for lower ko, 4 pass for upper ko]
PL[W]

AB[ea][db][eb][cc][dc][bd][dd][ae][be][ce][de]
AW[ba][fa][ab][bb][cb][fb][bc][ec][fc][ed][ee][af][bf][cf][df][ef]

;W[da]C[W1]MN[1]
;B[ac]C[B2]MN[2]
;W[ad]C[W5]MN[5]
;B[ca]C[B6]MN[6]

;
)
