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Demonstrations 21  40 of 396
Find the Opposite Face
Sum of Numbers on Invisible Faces
Number of Cubes Stacked in a Corner
Four Interwoven Triangles
Balanced Ternary Notation
Minimally Squared Rectangles
Possible Counterexamples to the Minimal Squaring Conjecture
NowhereNeat Tilings
Mrs. Perkins's Quilts
Area Puzzle
The Ray Puzzle
Dissection of an Octagram into Five Octagrams
Optical Illusion of the Extra Piece
Dissection of a Regular Dodecagon into Six Smaller Ones
Mondrian Art Problem
Dissection of One Hexagram into Seven
Mazes on Schlegel Diagrams
Magic Squares and Designs
Rubik's Snake Puzzle
Solving Logic Puzzles with Binary Trees
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