The elegant and magical Haberdasher puzzle.


This gem is an astonishing discovery of Henry Dudeney, famous creator of puzzles. The puzzle asks to dissect an equilateral triangle into four pieces and to rearrange them into a perfect square.

Moreover, the four pieces can be hinged together; if you turn them over one direction, you get the square, the other direction results in the triangle. If you’re a woodcrafter, constructing a wooden version would be a challenge ;)