def get_col(square: tuple) -> list:
    """
    Gets all the squares in the column, this square is in.

    :param square: A tuple (row, column) coordinate of the square
    :return: A list containing all the tuples of squares in the column
    """
    col_squares = []
    for j in range(0, 9):
        col_squares.append((j, square[1]))
    return col_squares