Kaleidoscope Cards (Poker size) - Trick

Effect

An effect that defies the laws of chance! You and a spectator each select two cards from a deck with a kaleidoscope of over 50 back designs. Amazingly, the backs of the spectator's freely selected cards match the backs of your cards.

But what is even more magical is that the faces of the selected cards match too. All are red queens. You then explain that the rest of the cards are queens too, but when you turn them over, they are all black queens - a startling climax!