### Count On Me

This mathematical trick can be performed with any pack

Effect: The magician can reveal a chosen card even when it is selected with his back turned.

Method:
Ask a spectator to shuffle his own pack of cards and count off any number of cards as long as it is less than 15. If for example he chooses number five then he looks at the fifth card remembers it and then he must replace the cards in the same order.

Whilst he is doing this your back is turned to him then turn around and take the pack placing it behind your back and count off 15 cards from the top putting them on the bottom but you must be careful not to reverse their order when you count them. At this point you can make it look as if you are fumbling around and unable to find a card. Next, hand the pack back to the spectator and tell him to transfer from the top to the bottom of the pack the same number of cards that he counted at first but before he does this he is to check that his card is not anywhere near this position.

After he has done this, take the pack once again, put it behind your back and transfer 15 cards from the bottom of the pack to the top. The bottom card will now be the card the spectator noted. Reveal the selected card in is mystifying way as possible but in fact spectator will not realise that he has in effect performed the trick himself.

How the Trick is Done

This is a self working mathematical trick.