Here is a trick as impossible as it is incomprehensible …
You take a blue packet out of a case and leave out a prediction with a red back that is clearly visible throughout the effect. Spread the ribbon cards face up.
The spectator can choose freely and without forcing the card of his choice. The 8 of spades for example. You just have to return your prediction, it is a white card with an 8 of spades drawn with the marker above.
CAN BE REDONE SEVERAL TIMES
NEVER THE SAME CARD
READY TO USE