Henry Ernest Dudeney/Puzzles and Curious Problems/181 - Three Greek Crosses from One/Historical Note

Historical Note on Puzzles and Curious Problems by Henry Ernest Dudeney: $181$ - Three Greek Crosses from One

Martin Gardner reports that Harry Lindgren has discovered a $12$ piece dissection.

This appears in his $1964$ work Geometric Dissections.

Sources

• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Answers: $347$. Three Greek Crosses from One