Henry Ernest Dudeney/Puzzles and Curious Problems/293 - The Twenty Pennies
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Puzzles and Curious Problems by Henry Ernest Dudeney: $293$
- The Twenty Pennies
- If sixteen pennies are arranged in the form of a square
- there will be the same number of pennies in every row, column and each of the long diagonals.
- Can you do the same with twenty pennies?
Click here for solution
Sources
- 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Magic Square, Measuring, Weighing, and Packing Problems: $293$. -- The Twenty Pennies
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Combinatorial & Topological Problems: Point Alignment Puzzles: $436$. The Twenty Pennies