new_contents: # THREE GOLD STARS
  
  # Sudoku [http://en.wikipedia.org/wiki/Sudoku]
  # is a logic puzzle where a game
  # is defined by a partially filled
  # 9 x 9 square of digits where each square
  # contains one of the digits 1,2,3,4,5,6,7,8,9.
  # For this question we will generalize
  # and simplify the game.
  
  # Define a procedure, check_sudoku,
  # that takes as input a square list
  # of lists representing an n x n
  # sudoku puzzle solution and returns the boolean
  # True if the input is a valid
  # sudoku square and returns the boolean False
  # otherwise.
  
  # A valid sudoku square satisfies these
  # two properties:
  
  #   1. Each column of the square contains
  #       each of the whole numbers from 1 to n exactly once.
  
  #   2. Each row of the square contains each
  #       of the whole numbers from 1 to n exactly once.
  
  # You may assume the the input is square and contains at
  # least one row and column.
  
  correct = [[1,2,3],
             [2,3,1],
             [3,1,2]]
  
  incorrect = [[1,2,3,4],
               [2,3,1,3],
               [3,1,2,3],
               [4,4,4,4]]
  
  incorrect2 = [[1,2,3,4],
               [2,3,1,4],
               [4,1,2,3],
               [3,4,1,2]]
  
  incorrect3 = [[1,2,3,4,5],
                [2,3,1,5,6],
                [4,5,2,1,3],
                [3,4,5,2,1],
                [5,6,4,3,2]]
  
  incorrect4 = [['a','b','c'],
                ['b','c','a'],
                ['c','a','b']]
  
  incorrect5 = [ [1, 1.5],
                 [1.5, 1]]
                 
  def check_sudoku():
      
  
  
  
  
      
      
  #print check_sudoku(incorrect)
  #>>> False
  
  #print check_sudoku(correct)
  #>>> True
  
  #print check_sudoku(incorrect2)
  #>>> False
  
  #print check_sudoku(incorrect3)
  #>>> False
  
  #print check_sudoku(incorrect4)
  #>>> False
  
  #print check_sudoku(incorrect5)
  #>>> False
  
  
  
subject: Create sudoku.py