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Demonstrations 61  80 of 240
Ten Year Calendar
Hinged Tessellations
Inflating a Dragon
Trick to Multiply by N1 in Base N
Disappearing Lines in a Rectangle
Disappearing Lines around a Circle
A Domino Puzzle
Number of Cubes Removed
Chebyshev Walking Machine
Number of Cannonballs in Piles of Different Shapes
Four in a Row
What Triangles Are in the Triangle?
Sum of Empty Skies for a Set of Planets
Recursive Dungeon Generation
The Game of Boxes
The Chinese Sexagenary Cycle
Pentagonal Tiling around a Pentagon
Laser Sword
Rolling Circles
Circles on a Grid
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