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2. Sudoku - Wikipedia

   en.wikipedia.org/wiki/Sudoku

   In The Times, The Age, and The Sydney Morning Herald, this form of puzzle is known as Samurai Sudoku. The Baltimore Sun and the Toronto Star publish a puzzle of this variant (titled High Five) in their Sunday edition. Often, no givens are placed in the overlapping regions.

3. World Sudoku Championship - Wikipedia

   en.wikipedia.org/wiki/World_Sudoku_Championship

   The World Sudoku Championship (WSC) is an annual international puzzle competition organised by a member of the World Puzzle Federation. The first event was held in Lucca in 2006. National teams are determined by local affiliates of the World Puzzle Federation. The competition typically consists of 100 or more puzzles solved by all competitors ...

4. 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 ...

5. Play Sudoku Online for Free - AOL.com

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

   Sudoku. Completely fill the 9x9 grid, using the values 1 through 9 only once in each 3x3 section of the puzzle. By Masque Publishing. Advertisement. Advertisement. Feedback. Help. Join AOL ...

6. Free Online Puzzle Games - No Downloads - AOL Games

   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.

7. 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.

8. 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.

9. Free Online Games: Play board games, card games, casino ... - AOL

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   Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.