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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. Kakuro - Wikipedia

   en.wikipedia.org/wiki/Kakuro

   Solution for the above puzzle. Kakuro or Kakkuro or Kakoro (Japanese: カックロ) is a kind of logic puzzle that is often referred to as a mathematical transliteration of the crossword. Kakuro puzzles are regular features in many math-and-logic puzzle publications across the world. In 1966, [1] Canadian Jacob E. Funk, an employee of Dell ...

5. Free Online Puzzle Games - No Downloads - AOL.com

   www.aol.com/games/puzzle

   There is nothing to download, just start playing any of our free online puzzle games right now! Browse and play any of the 40+ online puzzle games for free against the AI or against your friends ...

6. 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.

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

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

   Printable version; Page information; Get shortened URL; Download QR code; ... English: Easy 4x4 sudoku puzzle for kindergarteners, drawing shapes. Date: 26 November 2017:

8. Taking Sudoku Seriously - Wikipedia

   en.wikipedia.org/wiki/Taking_Sudoku_Seriously

   Taking Sudoku Seriously. Taking Sudoku Seriously: The math behind the world's most popular pencil puzzle is a book on the mathematics of Sudoku. It was written by Jason Rosenhouse and Laura Taalman, and published in 2011 by the Oxford University Press. The Basic Library List Committee of the Mathematical Association of America has suggested its ...

9. Web Sudoku - Wikipedia

   en.wikipedia.org/wiki/Web_Sudoku

   Web Sudoku is an online sudoku website which was rated as one of the best 50 fun and games website by Time. [1] It was founded by Gideon Greenspan and Rachel Lee. [2] The website was rated as the 7265th best website in the world by Jonathan Harchick in his book The World's Best Websites. [3] Greenspan claimed that about three million people ...