turned ace

Magician takes 3 cards: ace of spades, ace of diamonds and the ace of clubs. Cards in his hand, unfolded like a fan, so that viewers see them. He then adds them together and transmits any one of the viewers. After that, says the magic words, and said that one of the cards turned. Next, inspect the card and it turns out that the ace of diamonds ace of hearts turned to.
The secret is to focus an optical illusion the audience. 3 aces laid out in the following order: Ace Hearts is in the middle so that the tip of the heart has been directed upwards. The other two cards are placed on the sides in such a way that they cover the downwardly directed part of the heart. With this arrangement, the ace of hearts can be taken as ace of diamonds. If you then fold the cards and give one of the spectators, he is very surprised when viewing the map, finds instead of an ace of diamonds, ace of hearts.