If it were any more direct, it would be real mindreading!
You show a deck of cards completely, front and back. You also show the "Lone Stranger"...a single card, with a different colored back from the deck. The cards are shuffled and openly spread on the table, allowing a spectator to select any card. When the spectator's card and the odd card are turned face up, they exactly match! The Lone Stranger strikes again!
A different freely chosen card each time!
Easy to do-absolutely no sleight-of-hand
Repeatable with a different selection!
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.