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Just like in traditional Sudoku, players must use logical reasoning and elimination techniques to solve the puzzle. free printable sudoku hard Cross out any numbers that cannot possibly go in that cell based on the given numbers and the numbers already placed in the row, column, and subgrid. printable sudoku pdf Tips for Solving Sudoku by the Boston Globe: Start with the easy clues: Begin by filling in the cells with known numbers. printable sudoku pdf
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