The effect of the trick
The magician is able to discover a card chosen at random purely by card counting.
Before you begin the trick
Take twelve cards from the pack, making sure you don’t have four of the same value then arrange them into three piles of four cards. Make sure there are not two cards of the same kind in any one pile. Also, each pile needs to be put into numerical order with the lowest card is on top.
How this card trick with pre-arranged deck actually works:
The magician asks a volunteer to select one of the 3 piles which he then fans in order that the volunteer can then select a card. They are not to reveal the identity of the card to the magician, but to remember also a number from 1-4, depending on the position of the card in its pile ie. 1 would be top card, 4 the bottom card.