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Backtracking is a depth-first search (in contrast to a breadth-first search), because it will completely explore one branch to a possible solution before moving to another branch. Although it has been established that approximately 5.96 x 10 26 final grids exist, a brute force algorithm can be a practical method to solve Sudoku puzzles.
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". [24] Examples and other variants can be found in the Glossary of ...
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
A minimal puzzle is a proper puzzle from which no clue can be removed without introducing additional solutions. Solving Sudokus from the viewpoint of a player has been explored in Denis Berthier's book "The Hidden Logic of Sudoku" (2007) [7] which considers strategies such as "hidden xy-chains".
Template Call Tree does and calls next Sudoku 9x9 grid top wrapper, set defa values Sudoku 9x9 table table with 9 boxes, 81 cells, major grids, outer border Sudoku 3x3 box 3x3 box 9 cells Sudoku 3x3 table 3x3 table with 9 cells, int. grids only, no outer border Implementation Notes: (yes I am a compulsive newbie..} |tparm= {{{parm ...
Call tree: Template does and calls next Sudoku 9x9 grid expands args Sudoku 3x3 box table table with 9 boxes, main grid Sudoku 3x3 box box with 3x3 cells Sudoku 3x3 table table with 3x3 cells, int. grids only 3x3 box args: 1..9 cell digits, gc - grid color, internal minor grid borders only cellsize c1..9 - cell background colors Implementation Notes: |= is a continuation trick, see{{Chess ...
Some of the better-known exact cover problems include tiling, the n queens problem, and Sudoku. The name dancing links , which was suggested by Donald Knuth , stems from the way the algorithm works, as iterations of the algorithm cause the links to "dance" with partner links so as to resemble an "exquisitely choreographed dance."
Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... Help. Pages in category "Sudoku solvers" The following 4 pages are in this ...