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School Puzzles and Recreations
Demonstrations 1 - 20 of 389
Length, Width, and Height of an Impossible Object
How Old Would You Be on Another Planet (or Pluto)?
Visual Encryption Pad
A Chinese Knight's Tour
An Infinite Knight's Tour
The Bomb Problem
Beautiful Designs Made from the Knight's Tour
An ASCII Game of Life
The Knight's Tour
Heilbronn Triangles in the Unit Square
Dots and Boxes
Permutations, Derangements, and Other Forbidden Position Problems Using Non-Attacking Rooks
An Exploration of the "6174 Problem" and Some Generalizations
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