You place a prediction in view. A spectator names any number between 1 and 50. You show a deck of cards and (without cutting or any moves) you count to that number. That card matches the prediction! Easy to do. No rough and smooth. [Note: These are merely the instructions that came with the prepared deck. You will not receive any cards. But it is easy to make up your own from a couple of duplicate cards.]
1st edition 1998; PDF 1 page.
word count: 591 which is equivalent to 2 standard pages of text