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Recreational Mathematics
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Demonstrations 21  40 of 976
Biggest Little Polyhedron
Consecutive Smooth Numbers
Koman Surfaces
The FourRunner Problem
Pandiagonal Magic Squares of Order Five
Three Crossings Puzzle
Folding a Strip of Paper to Make an nGon
Constructing and Solving Nonograms
Cryptic Crosswords
ThreeColor Territory Game for Two
Descartes's Geometric Solution of a Quadratic Equation
Bezdek's Unistable Polyhedron With 18 Faces
RepTiles
Prisoner's Dilemma and Some Analogs in Game Theory
Tiling Constructor, TileDragging Variant
Pythagorean Theorem for Regular Polygons
ThreeColor Territory Puzzle
The Game of Gobblet
Bicycle Wheels Using Curves of Constant Width
Passages for Two Players
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