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  2. Sudoku - Wikipedia

    en.wikipedia.org/wiki/Sudoku

    A Sudoku with 18 clues and two-way diagonal symmetry. This section refers to classic Sudoku, disregarding jigsaw, hyper, and other variants. A completed Sudoku grid is a special type of Latin square with the additional property of no repeated values in any of the nine blocks (or boxes of 3×3 cells).

  3. Sudoku solving algorithms - Wikipedia

    en.wikipedia.org/wiki/Sudoku_solving_algorithms

    Sudoku solving algorithms. A typical Sudoku puzzle. A standard Sudoku contains 81 cells, in a 9×9 grid, and has 9 boxes, each box being the intersection of the first, middle, or last 3 rows, and the first, middle, or last 3 columns. Each cell may contain a number from one to nine, and each number can only occur once in each row, column, and box.

  4. File:4x4 shapes sudoku puzzle.pdf - Wikipedia

    en.wikipedia.org/wiki/File:4x4_shapes_sudoku...

    The following other wikis use this file: Usage on en.wikibooks.org Wikijunior:Maze and Drawing Book; Wikijunior:Maze and Drawing Book/Print version

  5. Play Sudoku Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/sudoku

    Science & Tech. Shopping. Sports. Weather. Close. Your game will start after this ad. Sudoku. Completely fill the 9x9 grid, using the values 1 through 9 only once in each 3x3 section of the puzzle ...

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  7. Enjoy classic board games such as Chess, Checkers, Mahjong and more. No download needed, play free card games right now! Browse and play any of the 40+ online card games for free against the AI or ...

  8. Mathematics of Sudoku - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_Sudoku

    Mathematical context. The general problem of solving Sudoku puzzles on n2 × n2 grids of n × n blocks is known to be NP-complete. [8] A puzzle can be expressed as a graph coloring problem. [9] The aim is to construct a 9-coloring of a particular graph, given a partial 9-coloring. The Sudoku graph has 81 vertices, one vertex for each cell.

  9. Puzzle - Wikipedia

    en.wikipedia.org/wiki/Puzzle

    t. e. A puzzle is a game, problem, or toy that tests a person's ingenuity or knowledge. In a puzzle, the solver is expected to put pieces together (or take them apart) in a logical way, in order to find the solution of the puzzle. There are different genres of puzzles, such as crossword puzzles, word-search puzzles, number puzzles, relational ...

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