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four by four sudoku 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. Don't Give Up : If you get stuck, take a break and come back to the puzzle with a fresh perspective. sudoku puzzles pdf Solve and Check : After completing the puzzle, use the provided answers to check your work and see how you did. ad free sudoku android Sudoku Games Without Ads: The Ultimate Puzzling Experience Introduction Sudoku, the popular puzzle game that challenges the mind and stimulates logical reasoning, has captured the attention of puzzle enthusiasts worldwide. sudoku with no adssudoku wing strategy Title: How to Solve Sudoku Puzzles Fast: Expert Tips and Tricks Introduction: Sudoku is a popular puzzle game that requires logical reasoning and patience.
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