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  2. Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Missing_square_puzzle

    The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different configurations.

  3. Vanishing puzzle - Wikipedia

    en.wikipedia.org/wiki/Vanishing_puzzle

    Interactive SVG of The Disappearing Bicyclist – in the SVG file, move the pointer to rotate the disc. A vanishing puzzle is a mechanical optical illusion comprising multiple pieces which can be rearranged to show different versions of a picture depicting several objects, the number of which depending on the arrangement of the pieces. [1][2]

  4. Wikipedia : Featured picture candidates/Missing square

    en.wikipedia.org/.../Missing_square

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate

  5. Talk:Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Talk:Missing_square_puzzle

    The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures. It depicts two arrangements of shapes, each of which apparently forms a 13×5 right-angled triangle, but one of which has a 1×1 hole in it. Picture: Fibonacci.

  6. Wikipedia : Featured picture candidates/Missing square puzzle

    en.wikipedia.org/.../Missing_square_puzzle

    Original – The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures. It depicts two arrangements of shapes, each of which apparently forms a 13×5 right-angled triangle, but one of which has a 1×1 hole in it. Reason

  7. 15 puzzle - Wikipedia

    en.wikipedia.org/wiki/15_puzzle

    15 puzzle. To solve the puzzle, the numbers must be rearranged into numerical order from left to right, top to bottom. The 15 puzzle (also called Gem Puzzle, Boss Puzzle, Game of Fifteen, Mystic Square and more) is a sliding puzzle. It has 15 square tiles numbered 1 to 15 in a frame that is 4 tile positions high and 4 tile positions wide, with ...

  8. Sliding puzzle - Wikipedia

    en.wikipedia.org/wiki/Sliding_puzzle

    As a famous example of the sliding puzzle, it can be proved that the 15 puzzle can be represented by the alternating group, [2] because the combinations of the 15 puzzle can be generated by 3-cycles. In fact, any n × m {\displaystyle n\times m} sliding puzzle with square tiles of equal size can be represented by A n m − 1 {\displaystyle A ...

  9. File:Missing square puzzle simple.svg - Wikipedia

    en.wikipedia.org/wiki/File:Missing_square_puzzle...

    Visual explanation of the missing square puzzle using smaller Fibonacci ratios 1:2 and 2:3 by CMG Lee. Date: 20 January 2023: Source: Own work: Author: Cmglee: SVG ...