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expert level sudoku Form the chain: Connect the 'X' and 'Y' cells with the third cell, creating an 'X' and 'Y' intersection. If you find a row, column, or subgrid that is missing a number, place that number in the appropriate cell. greater than killer sudoku Pointing Pairs: These techniques are more powerful when combined with other advanced techniques, such as X-Wing or Swordfish. greater than killer sudokuleetcode sudoku solver This feature is great for players looking to set personal records and track their improvement over time.
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