Insight · ★★★☆☆ · ~7 min
Scaling a Square (Impossibility)
Four coins at a square's corners; jump one over another. Can you grow the square?
by MindYourPuzzle
Four coins at the corners of a 1×1 square. A valid move: pick any two coins (mirror and jumper), and move the jumper to the point diametrically opposite with respect to the mirror (180° rotation around the mirror).
Can you transform this into a 2×2 square using any number of valid moves?
Hints