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If a cell has no value at all. it's grid borders will not display. To avoid this, for blank cells, use  . As a precaution, pass the grid color gc, to use as the table bgcolor. If the cell border is not displayed, the 3x3 table body color shows, which will be the same. See [[Template:Sudoku 9x9 grid]] for primary documentation.
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.
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,
Sudoku grid display. Call Tree: Template does and calls next Sudoku 9x9 grid expands args Sudoku 9x9 table table with 9 boxes, major grids, outer border Sudoku 3x3 box box with 3x3 cells Sudoku 3x3 table table with 3x3 cells, int. grids only 3x3 table args 1..9 digits, s1..S9 - cell style settings border color, size - internal borders only cellsize cell background color |-table quirks |style ...
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 ...
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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.
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