Henry Ernest Dudeney/Modern Puzzles/103 - A New Cutting-out Puzzle/Historical Note
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Historical Note on Modern Puzzles by Henry Ernest Dudeney: $103$ - A New Cutting-out Puzzle
In his $1968$ repackaging 536 Puzzles & Curious Problems, Martin Gardner references Harry Lindgren's symmetrical solution, published in $1964$.
Sources
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Answers: $327$. A New Cutting-out Puzzle