Ask a volunteer to choose a number from 0 to 15. During the trick, they are allowed to lie once if they want!
Show them each of the seven cards, one at a time. For each card they should say `Yes’ if they see their number, or `No’ if they do not.
You can use the tick boxes to flip the cards as needed, and drag the cards on to the grid on the left.
Even though they may have lied, the cards will magically reveal the chosen number!