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The V-Cube 7 is a combination puzzle in the form of a 7×7×7 cube. The first mass-produced 7×7×7 was invented by Panagiotis Verdes and is produced by the Greek company Verdes Innovations SA. Other such puzzles have since been introduced by a number of Chinese companies, [ 1 ] some of which have mechanisms which improve on the original.
The manipulations of the Rubik's Cube form the Rubik's Cube group. The Rubik's Cube group (,) represents the structure of the Rubik's Cube mechanical puzzle.Each element of the set corresponds to a cube move, which is the effect of any sequence of rotations of the cube's faces.
7x7 may refer to: Boeing 7x7 series, Boeing's "7-Series" of airliners; Boeing 767, wide-body aircraft codenamed "7X7" during development; 7x7, a San Francisco-focused fashion, food, and entertainment magazine; 7x7 (website), a Russian website; V-Cube 7, the 7×7×7 version of Rubik's Cube
Three contestants – each seated at either a red, green, or blue desk – competed to answer trivia questions and acquire squares on a 7x7 split-flap game board. Seven grade levels, covering elementary school and grades 7 through 12, ran along the top of the board, while seven categories ran down the left edge.
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The smallest (and unique up to rotation and reflection) non-trivial case of a magic square, order 3. In mathematics, especially historical and recreational mathematics, a square array of numbers, usually positive integers, is called a magic square if the sums of the numbers in each row, each column, and both main diagonals are the same.
In geometry, a 7-cube is a seven-dimensional hypercube with 128 vertices, 448 edges, 672 square faces, 560 cubic cells, 280 tesseract 4-faces, 84 penteract 5-faces, and 14 hexeract 6-faces. It can be named by its Schläfli symbol {4,3 5 }, being composed of 3 6-cubes around each 5-face.