fr To solve a Sudoku puzzle, one must look for cells where only one number is possible, or rows/columns/blocks where a specific number has only one possible placement.
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fr Sudoku Strategies: Scanning and Marking
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fr To solve a Sudoku puzzle, one must look for cells where only one number is possible, or rows/columns/blocks where a specific number has only one possible placement. sudoku.com expert Sudoku competitions are held globally, where speed solvers compete to finish complex grids in the shortest time possible.
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