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  2. Magic square - Wikipedia

    en.wikipedia.org/wiki/Magic_square

    The magic square is obtained by adding the Greek and Latin squares. A peculiarity of the construction method given above for the odd magic squares is that the middle number (n 2 + 1)/2 will always appear at the center cell of the magic square. Since there are (n - 1)! ways to arrange the skew diagonal terms, we can obtain (n - 1)! Greek squares ...

  3. Rubik's family cubes of varying sizes - Wikipedia

    en.wikipedia.org/wiki/Rubik's_family_cubes_of...

    There are many references to moves that can be used to resolve these problems. Fewer references [5] [18] demonstrate how these moves satisfy parity rules. From a parity perspective, there is a need to consider the rearrangement of centre cubies which is not readily observable in cubes with unmarked centres.

  4. Rubik's Cube - Wikipedia

    en.wikipedia.org/wiki/Rubik's_Cube

    Although there are a significant number of possible permutations for Rubik's Cube, a number of solutions have been developed which allow solving the cube in well under 100 moves. Many general solutions for the Cube have been discovered independently. David Singmaster first published his solution in the book Notes on Rubik's "Magic Cube" in 1981 ...

  5. Magic cube - Wikipedia

    en.wikipedia.org/wiki/Magic_cube

    An example of a 3 × 3 × 3 magic cube. In this example, no slice is a magic square. In this case, the cube is classed as a simple magic cube.. In mathematics, a magic cube is the 3-dimensional equivalent of a magic square, that is, a collection of integers arranged in an n × n × n pattern such that the sums of the numbers on each row, on each column, on each pillar and on each of the four ...

  6. Rubik's Cube group - Wikipedia

    en.wikipedia.org/wiki/Rubik's_Cube_group

    Noticing that there are 8 corners and 12 edges, and that all the rotation groups are abelian, gives the above structure. Cube permutations, C p, is a little more complicated. It has the following two disjoint normal subgroups: the group of even permutations on the corners A 8 and the group of even permutations on the edges A 12. Complementary ...

  7. Pandiagonal magic square - Wikipedia

    en.wikipedia.org/wiki/Pandiagonal_magic_square

    There are many 5 × 5 pandiagonal magic squares. Unlike 4 × 4 pandiagonal magic squares, these can be associative . The following is a 5 × 5 associative pandiagonal magic square:

  8. Associative magic square - Wikipedia

    en.wikipedia.org/wiki/Associative_magic_square

    The number zero for n = 6 is an example of a more general phenomenon: associative magic squares do not exist for values of n that are singly even (equal to 2 modulo 4). [3] Every associative magic square of even order forms a singular matrix, but associative magic squares of odd order can be singular or nonsingular. [4]

  9. Category:Magic squares - Wikipedia

    en.wikipedia.org/wiki/Category:Magic_squares

    Pages in category "Magic squares" The following 47 pages are in this category, out of 47 total. This list may not reflect recent changes. ...