thank you so much for explaining it !

for input A1 the test expects an output of [] ???? why ???

i keep getting this error:
Traceback (most recent call last):
File "/workspace/default/.venv/lib/python3.11/site-packages/codewars_test/test_framework.py", line 112, in wrapper
func()
File "/workspace/default/tests.py", line 22, in examples
test.assert_equals(available_moves(t[0]), t[1])
^^^^^^^^^^^^^^^^^^^^^
File "/workspace/default/solution.py", line 12, in available_moves
if (not letter.isalpha()) or (not number.isdigit()) or letter not in ['A','B','C','D','E','F','G','H'] or not 1 <= int(number) <= 8:
^^^^^^^^^^^^^^
AttributeError: 'int' object has no attribute 'isalpha'

and truly i do not understand why. ive checked my code again and again and it works fine on VsCode so i have no idea what i should change. are others experimenting the same ?

i dont understand. when i test my solution it gives me an error but with no specification at all. however when i use vscode, my code works fine. i wonder if it's because i used the numpy library... but the output has to be a 2D array so i dont get it.

i dont understand how you can write a whole line with if AND else without any ':' and it works. everytime i try to do something like that i get an error. does someone has an idea of why that is please ?