In the Turn Over Puzzle, ten two-sided objects (e.g., coins) are arranged in a circle.
At the start, all ten objects have the same side facing up (e.g., all Heads, if coins are used).
The object of the game is to turn nine of the objects upside down (e.g., to Tails) by following a simple set of rules.
While this may seem easy, most people find the challenge very difficult.
In the interactive version presented here, ten pieces from the board game Reversi (aka Othello) are used. These pieces are black on one side and white on the other.
At the start, all ten pieces show BLACK. You have to turn nine of the pieces over to show WHITE, leaving just one black piece at the end.
|Click the pieces to make your moves
or click DEMO to watch a demonstration
|Can you turn over|
Turn Over Challenge is an interactive presentation by Michael Daniels of a puzzle described in Paul Daniels Adult Magic by Barry Murray (1989)