Henry Ernest Dudeney/Puzzles and Curious Problems/109 - Perfect Squares
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Puzzles and Curious Problems by Henry Ernest Dudeney: $109$
- Perfect Squares
- Find $4$ numbers such that the sum of every two and the sum of all four may be perfect squares.
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Sources
- 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Arithmetical and Algebraical Problems: Digital Puzzles: $109$. -- Perfect Squares
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Arithmetical and Algebraical Problems: Miscellaneous Puzzles: $188$. Perfect Squares