Self-described “science magician” Matt Pritchard created the amazing illusion called “The Phantom Queen” where the queen appears only in a mirror that faces the Chessboard but not on the board itself.
The main illusion in this video shows a chess board and its reflection in a mirror. However, there’s a phantom White Queen piece that only appears as a reflection, leaving a mysterious empty square in the foreground.
Pritchard explains how this illusion was achieved.
The illusion is achieved by creating a camouflaged invisibility cloak that shields the Queen from one viewing angle. The shape and pattern of this shield also disguise its presence when viewed from a second angle that comes from the mirror’s reflection.