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Demonstrations 21  40 of 367
How Many Triangles in a SixPointed Star?
Princess and Witch Puzzle
Seven Touching Cylinders Puzzle
Three Crossings Puzzle
Kissing Coins
Area Maze Race
MAX Puzzle
Bubble Chain Puzzle
Carramba Puzzle
Solving Decanting Problems by Graph Theory
27 Coins Balance Puzzle
Mazes on a Cylinder, Including Its Ends
Mazes on Various Map Projections of the Earth
8 and 8 Pitcher Puzzle
Mazes Produced by Random Spanning Trees
The Ellipse Problem of Steinhaus
Infinite Magic Elliptic Curves
Universal Cork
Rubik's Snake Puzzle
Ant Puzzle
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