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Jaap's Scratch Pad

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Visit this site: http://www.jaapsch.net/

Author:Jaap Scherphuis
Description: Java applets, generators, and solutions for sudoku, Rubik's Cube, "moving pieces" puzzles, permutation puzzles, and more, including sphere symmetries, polyform, Towers of Hanoi, and many lesser known puzzles from this collector. Scherphuis' articles range from Cayley graphs to a circle puzzler's manual, from group theory for puzzles to Thistlethwaite's 52-move algorithm.

Levels: Middle School (6-8), High School (9-12), College
Languages: English
Resource Types: Manipulatives, Problems/Puzzles, Articles, Web Interactive/Java
Math Topics: Group Theory, Algorithms, Combinatorics, Graph Theory, Polyhedra, Symmetry/Tessellations

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