def sort_cells_closest(start_cell, cells):
    """
    Description:
        Returns a sorted list of cells by 'closest' based on the given start cell
    Args:
        start_cell (tuple): Coordinates (x, y) of the reference cell
        cells (list): List of (x, y) tuples that are the cells to compare
    Returns:
        list: A list containing all the "cells", sorted by closeness relative to "start_cell"
    """
    sorted_list = sorted(cells, key=lambda cell: abs(cell[0]-start_cell[0]) + abs(cell[1] - start_cell[1]))
    return sorted_list