В списке менять квадраты местами

from tkinter import *
from random import random, randint, randrange, choice
from PIL import ImageTk, Image
import pygame
 
 
class Court:
    def __init__(self, surface):
        self.surface = surface
        self.court = self._generate()
 
    def _generate(self):
        plitks = []
        for row in range(7):
            for col in range(7):
                if row == 0 and col == 0 or row == 0 and col == 1 or row == 1 and col == 0 or row == 1 and col == 1:
                    pass
                elif row == 0 and col == 5 or row == 0 and col == 6 or row == 1 and col == 5 or row == 1 and col == 6:
                    pass
                elif row == 5 and col == 0 or row == 5 and col == 1 or row == 6 and col == 0 or row == 6 and col == 1:
                    pass
                elif row == 5 and col == 5 or row == 5 and col == 6 or row == 6 and col == 5 or row == 6 and col == 6:
                    pass
                elif col == 3 or col == 4:
                    plitks.append(Plit(x=row * 61, y=col * 61, surface=self.surface, file_img=chicken_img))
                elif col == 5 and row == 2 or col == 5 and row == 3 or col == 5 and row == 4:
                    plitks.append(Plit(x=row * 61, y=col * 61, surface=self.surface, file_img=chicken_img))
                elif col == 6 and row == 2 or col == 6 and row == 3 or col == 6 and row == 4:
                    plitks.append(Plit(x=row * 61, y=col * 61, surface=self.surface, file_img=chicken_img))
                elif col == 2 and row == 2 or col == 2 and row == 4:
                    plitks.append(Plit(x=row * 61, y=col * 61, surface=self.surface, file_img=fox_img))
                else:
                    plitks.append(Plit(x=row * 61, y=col * 61, surface=self.surface, file_img=empty_img))
        return plitks
 
    def draw(self):
        for i in self.court:
            i.change_color()
            i.Draw()
 
    def process(self):
        pass
 
 
 
class Plit:
    color = (150, 40, 40)  # useless stroke
 
    def __init__(self, x, y, surface, file_img):
        self.image = pygame.Surface((50, 50))
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.surface = surface
        self.image = pygame.image.load(file_img)
        self.image.set_colorkey((0, 0, 0))
 
    def Draw(self):
        self.surface.blit(self.image, (self.rect.x, self.rect.y))
 
    def change_color(self):
        if self.clicked():
            self.image.fill((255,255,255))
 
 
 
    def clicked(self):
        if self.collide_cursor():
            return pygame.mouse.get_pressed() == (1,0,0)
 
    def collide_cursor(self):
        mx ,my = pygame.mouse.get_pos()
        global mx
        global my
        return mx > self.rect.left and mx < self.rect.right and my >self.rect.top and my < self.rect.bottom
 
 
if __name__ == '__main__':
    bg_color = (100, 100, 100)
    window_size = (1400, 800)
 
    window = pygame.display.set_mode(window_size)
    screen = pygame.Surface(window_size)
    colors = ((150, 40, 40), (40, 150, 40), (40, 40, 150))
    chicken_img = 'chicken_test.jpg'
    fox_img = 'fox_test.jpg'
    empty_img = 'empty_field.jpg'
    game_status = True
 
    Court = Court(screen)
 
    while game_status:
        for i in pygame.event.get():
            if i.type == pygame.QUIT:
                game_status = False
 
        screen.fill(bg_color)
        Court.draw()
        window.blit(screen, (0, 0))
        pygame.display.flip()