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The post 20 Printable Sudoku Puzzles to Test Your Smarts appeared first on Reader's Digest. You want to start with the easy ones, but if you're an expert, you can skip to the extra hard puzzles.
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.
A Sudoku puzzle can be expressed as a graph coloring problem. [27] The aim is to construct a 9-coloring of a particular graph, given a partial 9-coloring. The fewest clues possible for a proper Sudoku is 17. [28] Tens of thousands of distinct Sudoku puzzles have only 17 clues. [29]
The general problem of solving Sudoku puzzles on n 2 ×n 2 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.
Put on your Sudoku hat and get ready for a challenging Sudoku puzzle! ... Sudoku. Completely fill the 9x9 grid, using the values 1 through 9 only once in each 3x3 section of the puzzle.
SUDOKU. Play the USA TODAY Sudoku Game.. JUMBLE. Jumbles: FORTY HUTCH HAGGLE CHILLY. Answer: He’d planned to cut the tree so it ended up away from the house, but his plans — FELL THROUGH
Buku Sudoku (titled Buku Números in Mexico and Buku数字パズル in Japan) is a downloadable puzzle game developed by Ukrainian studio Absolutist Ltd and published by Merscom based on Sudoku for the Windows PC's. The game was also released for the Xbox 360 via Xbox Live Arcade, on May 28, 2008.
Consequently it is not necessary to test for undefind params, but I do so for compatibility with future usage. See [[Template: Sudoku 9x9 grid]] for details and [[Template: Sudoku 3x3 table]] for table trivia Modeled after [[Template: 4x4 type square]] Orig: LarryLACa 11/4/05 Comment must cuddle next template call to avoid nl whitespace