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A standard Sudoku grid consists of nine 3x3 subgrids called "boxes" or "regions." Each row, column, and box must contain the digits 1 through 9 without repetition. sudoku printable blankno ads sudoku The objective is to fill the grid with numbers from 1 to 9, ensuring that each row, column, and subgrid contains all the digits without repetition. Some popular heuristic methods include the "most constrained cell" and "least constraining value." Using a Sudoku Solver: Using a Sudoku solver is straightforward. variants of sudoku
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