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Demonstrations 21  40 of 385
Constructing and Solving Nonograms
Cryptic Crosswords
Nonograms from Invaders
Pythagorean Theorem for Regular Polygons
ThreeColor Territory Puzzle
Guess the Antisymmetric Frieze Group, Part 2
Guess the Antisymmetric Frieze Group, Part 1
The Colorit Puzzle
The Diagonal Paradox
Measuring with Two Jugs
Chain Puzzle on Triangular Grid
Wordfinder Puzzle
Volume of a Polyhedron Given by a Particular Net
Crossword Grid Maker
Projections of Cubes and HalfCubes
The Obedient Reflected Ray
Dissection of a Square and an Isosceles Right Triangle into a Square
Regular 2nGon to Rectangles Dissection
Squared Chain Puzzle
Angel Puzzle
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