alt Hacker NewsThere are actually "marked" decks you can buy that come with an iphone app that tell you exactly where every card on the deck is by looking at the side.
There are actually "marked" decks you can buy that come with an iphone app that tell you exactly where every card on the deck is by looking at the side.
Marked decks are an ancient tradition for both cheaters and magicians. There are also ways to mark a deck that aren't obvious to most people with a casual inspection and that don't need an app to read from the edge.