You show six chips with different coloured faces, and another special chip with a question mark printed on its back. You tell the audience that this special chip is a prediction so it’s a secret for now…
You ask the audience to turn over the six chips so that the colours are covered, and then let the audience to mix them up. After that, the audience is requested to randomly select one chip from the six chips.
You then put the prediction chip on the selected chip, and tell the audience that these two chips have the same colour on their faces.
The un-selected chips are turned over to see which colour is missing. Then you reveal that both the selected and the prediction chips match!!
You can now take out another prediction chip, and perform the trick again using the remaining five chips with different colours.
The result is correct again!