Step 1: Look for Solvable Rows, Columns, and Boxes Start by scanning the grid for rows, columns, or boxes that contain only a few numbers. world's toughest sudoku The technique is named after the shape formed by the three cells involved in the chain, resembling an 'X' and a 'Y' intersection. simple sudoku with answers
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Use logical reasoning: Apply logical reasoning to eliminate numbers that cannot be placed in a particular cell based on the rules of Sudoku. world's toughest sudokusudoku algorithm python The objective is to fill the grid with numbers from 1 to 9, ensuring that each number appears only once in each row, column, and 3x3 subgrid.
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