Ha!
Not if you take into account the use of tri-state gates, the output of which can be 1, 0, or -unspecified- (e.g blank)
(
Londingham .,
Thu 10 Nov 2005, 17:52,
archived)
Pfffffft, cheater!
(
Guineapiggy Fuzzeh!,
Thu 10 Nov 2005, 17:53,
archived)