Henry Ernest Dudeney/Puzzles and Curious Problems/350 - The Keys and Ring
Jump to navigation
Jump to search
Puzzles and Curious Problems by Henry Ernest Dudeney: $350$
- The Keys and Ring
- Colonel Crackham the other day produced a ring and two keys, as here shown,
- cut out of a solid piece of cardboard, without a break or join anywhere.
Click here for solution
Sources
- 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Unclassified Problems: $350$. -- The Keys and Ring
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Unclassified Puzzles: $531$. The Keys and Ring