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| Manufactures wooden puzzles of polyomino type. Includes Prices, tips, hints and pages with solution counts. |
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| Google PR |
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| Include news, math tricks, methods, facts, trivia, mostly posted by users. |
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| Google PR |
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| Polyomino and polyform games and puzzles manufactured by Kadon Enterprises Inc. |
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| Google PR |
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| Contains math, puzzle, geometry, illusions, mazes, links, articles and problems. |
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| Google PR |
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| A magic chalkboard takes you to a math art gallery and lots of interactive math activities, including: magic squares, conversions, seasonal surveys, symmetry, tessellations, geometric designs, games. |
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| Google PR |
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| Individual pages on different topics in Mathematics. Examples : group theory, dynamical systems theory, geometry or number theory. |
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| Google PR |
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| Topics include Flexagon, Soma Cube, Pentominos, Cube-it, Rubik's Cube, Froebel's Star, Tangram, House of Santa Claus, Chronogram, Numeric Palindromes, Latticework of Letters. English/German. |
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| Google PR |
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| Includes puzzles, jokes, quotations, poetry, and FAQs. |
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| Google PR |
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| Magic squares which remain magic after their entries are raised to various powers. Examples, constructions, bibliography and links compiled by Christian Boyer. Site in English and French. |
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| Google PR |
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| Features interesting facts about different numbers. Includes favorite related links. |
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| Google PR |
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