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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.
There are many Sudoku variants, partially characterized by size (N), and the shape of their regions. Unless noted, discussion in this article assumes classic Sudoku, i.e. N=9 (a 9×9 grid and 3×3 regions). A rectangular Sudoku uses rectangular regions of row-column dimension R×C.
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."
Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. Find answers to the latest online sudoku and crossword puzzles that were ...
Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. ... Online Crossword & Sudoku Puzzle Answers for 08/11/2024 - USA TODAY ...
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
SUDOKU. Play the USA TODAY Sudoku Game.. JUMBLE. Jumbles: MACAW HOUSE WIDGET DIGEST. Answer: They loved their “talkative” kitty and thought she was — THE CAT’S MEOW
Each row, column, or block of the Sudoku puzzle forms a clique in the Sudoku graph, whose size equals the number of symbols used to solve the puzzle. 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.