Yes, I'm back for a second installment of doing card tricks with math.

I just found a cool one on the net. Here goes:

The spectator cuts a deck in half,chooses a card from one pile, memorizes it and places it on top of the pile. He then proceeds to place the other on top to "mix the cards". After discarding some cards along the way, the spectators card is magically found!

This trick calls for a certain aptitude in dealing and handling cards. The prerequisite is that you will have to try to cut the deck into almost equal halves, and this requires practice.

Procedure:

Cut a deck in halve, or as close to as you can.

Have the spectator choose one pile and pick any card he wishes from it.

Have him place the card on the top of the pile.

Place the other pile upon the one chosen to seemingly "lose the card."

Have the spectator deal the cards into four piles, naturally, there will be 13 in each.

Then flip over all the piles and ask him if his card is in it.

Discard the three piles without.

Now, deal the pile of 13 into four piles again.

There should be one pile of four cards, discard it.

Now we have three piles of three.

*The middle card of the middle pile is theirs

Using your own creativity, reveal the magic to your spectator and blow him away.

Troy