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

A funny ko-threat]
PL[B]

AB[ca][da][db][dc][cd][dd][ce][cf][df][ef][eg]
AW[ba][cb][bc][cc][bd][be][bf][cg][dg]

;B[ab]C[B1]MN[1]

;
)
