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By following the rules, using strategies, and practicing regularly, you can improve your problem-solving skills and have a great time. sudoku easy level with answers Use the Pencil-and-Paper Method: Many Sudoku enthusiasts recommend using a pencil and paper to solve puzzles. printable sudoku puzzles This feature adds an extra layer of excitement to the game, as you'll be able to see how your scores stack up against others. washington post sudoku/ Conclusion Medium Sudoku puzzles are an excellent way to challenge your mind and improve your logical reasoning skills. magic squares sudokudaily killer 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.