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16 x 16 sudoku These techniques involve identifying multiple sets of numbers with limited possibilities, allowing you to make more precise deductions. sudoku irregular These methods are based on the idea that solving certain parts of the puzzle first can lead to a quicker solution. new york times easy sudoku def is_valid(board, row, col, num): for x in range(9): if board[row][x] == num or board[x][col] == num: return False start_row, start_col = 3 * (row // 3), 3 * (col // 3) for i in range(3): for j in range(3): if board[i + start_row][j + start_col] == num: return False return True def solve_sudoku(board): for i in range(9): for j in range(9): if board[i][j] == 0: for num in range(1, 10): if is_valid(board, i, j, num): board[i][j] = num if solve_sudoku(board): return True board[i][j] = 0 return False return True Solving the Puzzle: Finally, we can integrate the functions to solve a given Sudoku puzzle. Stimulate Brain Functions : Sudoku challenges various parts of the brain, including problem-solving, logical reasoning, and spatial awareness. sudoku four by four
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