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2. Sudoku solving algorithms - Wikipedia

   en.wikipedia.org/wiki/Sudoku_solving_algorithms

   Some hobbyists have developed computer programs that will solve Sudoku puzzles using a backtracking algorithm, which is a type of brute force search. [3] 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.

3. Mathematics of Sudoku - Wikipedia

   en.wikipedia.org/wiki/Mathematics_of_Sudoku

   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.

4. Sudoku - Wikipedia

   en.wikipedia.org/wiki/Sudoku

   The general problem of solving Sudoku puzzles on n 2 ×n 2 grids of n×n blocks is known to be NP-complete. [26] Many Sudoku solving algorithms , such as brute force -backtracking and dancing links can solve most 9×9 puzzles efficiently, but combinatorial explosion occurs as n increases, creating practical limits to the properties of Sudokus ...

5. Puzzle solutions for Friday, Feb. 14, 2025

   www.aol.com/news/puzzle-solutions-friday-feb-14...

   Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. ... Puzzle solutions for Friday, Feb. 14, 2025. USA TODAY.

6. Puzzle solutions for Tuesday, Sept. 24

   www.aol.com/puzzle-solutions-tuesday-sept-24...

   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

7. Puzzle solutions for Wednesday, Dec. 18, 2024

   www.aol.com/puzzle-solutions-wednesday-dec-18...

   Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers.

8. Puzzle solutions for Wednesday, Aug. 14, 2024

   www.aol.com/puzzle-solutions-wednesday-aug-14...

   Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. ... Puzzle solutions for Wednesday, Aug. 14, 2024.

9. Sudoku graph - Wikipedia

   en.wikipedia.org/wiki/Sudoku_graph

   A graph coloring of the Sudoku graph using this number of colors (the minimum possible number of colors for this graph) can be interpreted as a solution to the puzzle. The usual form of a Sudoku puzzle, in which some cells are filled in with symbols and the rest must be filled in by the person solving the puzzle, corresponds to the precoloring ...