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Single Elimination: If a number is missing in a row, column, or subgrid, eliminate that number from the other cells in that row, column, or subgrid. sudoku solver freeware Step 6: Use X-Wing and Swordfish Techniques Advanced Sudoku players may want to employ the X-Wing and Swordfish techniques. sudoku how to play Step 2: Single Candidate Technique The single candidate technique involves identifying cells that can only contain one number based on the given numbers and the rules of Sudoku. sudoku offline
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sudoku solver freeware How to Solve Hard Sudoku Puzzles Step by Step
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