(;GM[1]FF[4]SZ[19]
GN[a strange ko]
PC[http://senseis.xmp.net/?LongLGroup]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?LongLGroup

a strange ko]
PL[W]

AB[cb][cc][cd][be][ce]
AW[db][eb][dc][dd][de][bf][cf][df][bg]
LB[ad:a]

;W[bb]C[W1]MN[1]
;B[ba]C[B2]MN[2]
;W[bc]C[W3]MN[3]
;B[ab]C[B4]MN[4]
;W[ac]C[W5]MN[5]
;B[ae]C[B6]MN[6]

;LB[ad:a]
)
