A Tile Puzzle Analogy of Electrons and Holes in Semiconductors

Holes in semiconductors can be described as locations where valence electrons are missing. These holes can move in one direction as a result of the electrons moving in the opposite direction.  An analogy I have used in my classes is the sliding tile puzzle: as the tiles move one way, the "hole" from the missing tile moves in the opposite direction.  Inspired by this concept, I adapted one of these tile puzzles to illustrate my point.