Setup
This trick needs 2 piles of the same size but of different suits, preferably different colors too. Arrange them in ascending order of value. You can show them face-up.
Place a pile on the second one. You can "shuffle" the deck by cutting it. It is very important to not disturb the sequence of the cards.
Next, deal half the cards on the table. Put the other half next to it. The 2 piles must present the same sequence but in opposing directions.
Repeat now these operations util there is only one card left :
n-1 swaps between the 2 piles, where n
is the number of cards in a pile. (A swap consists of taking the top card and
placing it at the bottom)Turn the 2 last cards, which have the same value. You can then slowly reveal all the other pairs, of same value each time too.