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sudoku hard printable if __name__ == "__main__": board = [ ["5", "3", ".", ".", "7", ".", ".", ".", "."], ["6", ".", ".", "1", "9", "5", ".", ".", "."], [".", "9", "8", ".", ".", ".", ".", "6", "."], ["8", ".", ".", ".", "6", ".", ".", ".", "3"], ["4", ".", ".", "8", ".", "3", ".", ".", "1"], [".", "6", ".", ".", ".", "7", "9", ".", "."], [".", ".", "7", ".", ".", ".", ".", "2", "4"], [".", "2", "1", ".", "9", ".", ".", ".", "5"], [".", ".", ".", "8", ".", ".", ".", "7", "9"] ] print(isValidSudoku(board)) Output: True Conclusion: Valid Sudoku is a popular problem on LeetCode that tests your ability to solve puzzles using algorithmic thinking. Hidden triples: Three numbers that appear only thrice in the entire grid, and their positions are not adjacent. 4x4 sudokuthanksgiving sudoku answers By mastering these techniques, you can solve more complex puzzles and enhance your problem-solving skills. While the basic rules of Sudoku are straightforward, solving medium-level puzzles can be quite a challenge. sudoku triple Samurai Sudoku Books : Samurai Sudoku combines multiple Sudoku grids within a larger grid, offering a higher level of difficulty and strategy. thanksgiving sudoku answers
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