Three Piles
1. Shuffle the deck in front of the audience. As you do so, take a glance at the third card down.
2. Cut the deck into three piles so that the third card down (which you know) is in the furthest pile.
3. Ask a member of the audience to move cards around between the piles, but ensure that they only take 2 off the pile with the forced card in.
4. Have a member of the audience point to a pile. If he/she points to the pile containing the known card, take the other two piles away. If he/she points to another pile, take that away.
5. Repeat step 4, leaving only the pile with the forced in it.
6. Tell them to take the top card off that pile (the one you know) and memorize it.
7. Next, have the volunteer shuffle it back into the whole deck. Now go and find it.
2. Cut the deck into three piles so that the third card down (which you know) is in the furthest pile.
3. Ask a member of the audience to move cards around between the piles, but ensure that they only take 2 off the pile with the forced card in.
4. Have a member of the audience point to a pile. If he/she points to the pile containing the known card, take the other two piles away. If he/she points to another pile, take that away.
5. Repeat step 4, leaving only the pile with the forced in it.
6. Tell them to take the top card off that pile (the one you know) and memorize it.
7. Next, have the volunteer shuffle it back into the whole deck. Now go and find it.