A 4x4 Field in Pygame

[Piethon]

Also could just do this.

def can_move(x, y):
    if 0 <= x < 4 and 0 <= y < 4:
        return True
    return False

# in event loop
    if event.key == pygame.K_LEFT:
        if can_move(x - 1, y):
            x -= 1

---

or

# in event loop
    if event.key == pygame.K_LEFT:
        if 0 <= x - 1 < 4:
            x -= 1

Thank you. I'll try it, but I still have got this problem, I've mentioned above.:

every time I run the code, Python crashes. Eh...yeah. Python crashes. When I'm running other Pygame-Projects, it's not crashing. I ran your code a few times, and the first few times, Python just crashed. I tried it again and then it was not crashing anymore, but just nothing happened (I didn't got an error message).
Thanks for the help, but still not working.

Edit: I just imported pygame. So above the code, I just have the lines:

import pygame

and

pygame.init()(But I'm not sure, if I really need the pygame.init()).

If somebody helps me with this, I'll be able, trying your code.