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

Ambiguous ko]
PL[W]

AB[ba][ab][bc][ad][bd][cd]
AW[ca][bb][cb][cc]

;W[aa]C[W1]MN[1]
;B[ac]C[B2]MN[2]

;
)
