Henry Ernest Dudeney/Modern Puzzles/112 - Squaring the Swastika/Historical Note
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Historical Note on Modern Puzzles by Henry Ernest Dudeney: $112$ - Squaring the Swastika
In his $1968$ repackaging 536 Puzzles & Curious Problems, Martin Gardner references Harry Lindgren's symmetrical solution $2$ and solution $3$, published in $1964$.
Sources
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Answers: $335$. Squaring the Swastika