Henry Ernest Dudeney/Modern Puzzles/103 - A New Cutting-out Puzzle/Solution 1

Modern Puzzles by Henry Ernest Dudeney: $103$

A New Cutting-out Puzzle

Cut the figure into four pieces that will fit together and form a square.

Solution

Historical Note

In his $1968$ repackaging 536 Puzzles & Curious Problems, Martin Gardner references Harry Lindgren's symmetrical solution, published in $1964$.

Sources

• 1926: Henry Ernest Dudeney: Modern Puzzles ... (previous) ... (next): Solutions: $103$. -- A New Cutting-out Puzzle
• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Answers: $327$. A New Cutting-out Puzzle