Popular Science

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In 1898, puzzle maker Sam Loyd drew “Back from the Klondike” to disprove Swiss mathematic­ian Leonhard Euler’s assertion that a person can solve any maze backward. You can’t maneuver this one from the outside in. Because of a typo, the original had many solutions, but this revised version has just two.

Instructio­ns: Start at the “3” in the center and move that many squares in any direction. The number you land on tells you how many steps to go from there. Continue in this fashion until you reach freedom at the edge of the field.

 ??  ?? Adapted from The Cyclopedia of Puzzles, Sam Loyd (1914)
Adapted from The Cyclopedia of Puzzles, Sam Loyd (1914)
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