Rabbits' Magic Pocket
Mathematical secret code
This trick needs 27 cards, which the spectator can shuffle.
Start by asking the spectator to take a card and memorize it. They can then shuffle the deck.
To help you, ask a number between 1 and 27, and calculate your secret code in order of the rows following these rules : (where B means BOTTOM, M means MIDDLE, and T means TOP)
By adding the digits of the number :
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|
| B | M | T | B | M | T | B | M | T |
| B | B | B | M | M | M | T | T | T |
With the number as is :
| 1-9 | 10-18 | 19-27 |
|---|---|---|
| B | M | T |
Next, take the deck face-down and deal 3 piles on the table face-up. Ask the spectator in which pile their card is in. While putting the deck back together face-up, respect the position of the spectator's pile corresponding to your secret code. Repeat this operation 3 times by taking the correct row in the table.
Finally, take the deck face-down and deal cards corresponding to the spectator's number. The card corresponding exactly will be the spectator's selected card.