text: """Game dynamics"""
  
  from board import format_board
  
  
  def turn(first, second, board, solution_board):
      """Fills board if user find out a pair"""
      first_box = solution_board[first[1]][first[0]]
      second_box = solution_board[second[1]][second[0]]
  
      board[first[1]][first[0]] = first_box
      board[second[1]][second[0]] = second_box
      fboard = format_board(board)
      print('\n' + fboard)
  
      if first_box == second_box:
          print('\n¡Has encontrado un par!')
          return [first, second]
      else:
          print('\n¡Has fallado!')
          board[first[1]][first[0]] = '-'
          board[second[1]][second[0]] = '-'
  