“Colour Diffusion” is 2 effects using the same set of playing cards.

The first trick is called “Colour Diffusion”. From a red back deck of playing cards, the performer takes a small packet of cards. He spreads the cards face upwards for a short while and then closes the spread. A spectator then guesses how many cards were shown.

The performer spreads the cards face up again and counts to show whether the spectator has guessed correctly. The packet of cards is closed up again and this time, the spectator guesses how many red and how many black cards were shown.

Again, the packet of cards is spread face up to show whether the spectator has guessed correctly. This time, the spectator guesses how many hearts were shown.

Again, the packet of cards is spread to show whether the spectator has guessed correctly.

The packet of cards is closed and turned face downwards. The performer takes a blue back card and slips it face unseen into the middle of the packet of cards. The packet of cards is turned face upwards and spread and the spectator guesses which card is the stranger card.

No matter what card the spectator names, the entire packet of cards is turned over and spread face downwards to show that each and every card has a different colour back. This experiment shows that people look at things but never really see everything.

The second effect is called “Colour Remix”. The performer shows 6 cards: 3 of which are red cards and 3 black cards. The 3 red cards have red backs and the 3 black cards have blue backs, to make it easy for the spectators to differentiate the 2 sets of cards.

The 6 cards are mixed by alternating red cards with black cards. The cards are gathered up and turned over face downwards. When spread, the blue backs come together and the red backs come together.

The backs of the cards are now mixed by alternating red backs with blue backs. Once again, the cards are gathered up and turned over. The reds now separate themselves from the black cards.

The performer takes one black card and one red card and put them aside, leaving only 4 cards. The 4 cards are mixed by alternating red and black cards. Again, the cards separate not only on the faces, but on the backs.

Another pair of red and black cards is taken out and placed aside together with the first pair of cards. These 4 cards are separated 2 red cards on one side and 3 black cards on another side. The performer places his red back card in the middle of the 2 black face up cards and the blue back card in the middle of the 2 red face up cards.

When the 2 face down cards are turned over in their respective opposite packets, the blue back card now becomes a red card and the red back card now becomes a blue card.

When the 2 sets of cards are turned over face downwards, each of their backs have now become a different colour.

You receive a set of 6 rainbow back cards, all of bicycle back design. You need to supply some of the cards from your own blue and red back bicycle deck of cards. You are also given a link to a tutorial video where Gary Jones teaches the 2 tricks.

The first effect “Colour Diffusion” is purely based on psychology and does not require any sleight-of-hand to perform. It has quite a challenging effect on a spectator.

The second trick “Colour Remix” is a simple, easy-to-follow but interesting oil-and- water effect using only 6 cards. It requires some basic and simple sleight-of-hand with cards.

Both of the tricks have a strong impact on the spectators. (Rated 5/5 stars)