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KD
Since: May, 2009
Mac_R
(Experienced, Not Yet Jaded)

A puzzle in a videogame can only be solved if the character knows the answer In-Universe - meaning, if the player knows the answer beforehand, he still has to go through the motions of having the character 'discover' it. For instance, in Resident Evil, there's a code to unlock the room with chemicals to kill that giant plant. no matter what combination the player presses, the room won't unlock until the character goes to the pool room and 'learns' what the solution is.