Anyone know the name of the programming challenge where you're supposed to make the program function incorrectly as subtle as possible? I remember that in a previous challenge you were supposed to write a luggage handling program for an airport, but every now and then it were supposed to send a bag to the wrong flight. I think it was a monthly challenge.
Do you mean the obfuscated C contest? http://www.ioccc.org/
If you regard the obfuscated c entries as being 'subtly incorrect' I must say I am fairly impressed
hehe