A magician shuffles a deck, gives it a cut and locates an ace. Another cut and another ace. He asks the spectator to shuffle. One cut and one more ace. Finally a series of shuffles and cuts and with his eyes closed he is able to find the last ace. A miracle... but there's more. He puts the four aces into four separate places in the deck. Another shuffle and he deals four poker hands. Whats this? Four aces in his hand? That is astonishing.
That is just one example of a force card routine. There are hundreds of others. Here is our selection of some of the best!