Ads
related to: sudoku 9x9 free blank grid paper printableformandtemplate.com has been visited by 10K+ users in the past month
Search results
Results From The WOW.Com Content Network
The cell values cannot be empty, else the cell grid borders don't show. Use as default. See [[Template: Sudoku 9x9 table]] and [[Template: Sudoku 3x3 table]] for table trivia Modeled after [[Template: 4x4 type square]] Orig: LarryLACa 11/4/05 This comment must cuddle next template call to avoid introducing nl whitespace in output,
Another variant on the logic of the solution is "Clueless Sudoku", in which nine 9×9 Sudoku grids are each placed in a 3×3 array. The center cell in each 3×3 grid of all nine puzzles is left blank and forms a tenth Sudoku puzzle without any cell completed; hence, "clueless". Examples and other variants can be found in the Glossary 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.
Put on your Sudoku hat and get ready for a challenging Sudoku puzzle! ... Completely fill the 9x9 grid, using the values 1 through 9 only once in each 3x3 section of the puzzle.
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.
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.
Ads
related to: sudoku 9x9 free blank grid paper printableformandtemplate.com has been visited by 10K+ users in the past month