Please forgive me because this is something I really should already know.

Apparently, in the original Pac-Man, there is a pathway you can take through the maze that will alter the movements of the ghosts and allow you to never come in contact with one, thus allowing you to get to the 256th stage. It's a classic trick, and I don't know how to perform it. Searching on the 'net reveals nothing for me about this. Can anybody tell me how this is done, or at least refer me to a site that explains it?

Thanks so much. Have pity on me; I am uneducated.