Read Note 2 at the end of the description, also the error message you get.

Yes.

You can see there also the test it fails: test.assert_equals(snail([[]]), [])

It's great that you ask for help and provide something to use: the error messages. They tell you that in line 11 you are trying to access a value at an index that is invalid for the container from which you are trying to access. I can't tell whether it is jmin that cannot be found in snail_map or whether i cannot be found in snail_map[jmin], but that is how you can figure out what's wrong. I hope this helps you debug. Questions?

Got it already. Had to add 'break' statement after commands

Hello @Jan Necinski

• please know that you should not post code without a spoiler tag (I have just added the tag to your comment) otherwise anyone who has not solved the kata can also see your code
• if you do post code, use proper markdown to preserve indentation

thank you

None, lol. it literally passed all the tests

Start by printing the input to see which input makes your code fail.

same bug here :/

didn't know about the function name requirement, thanks!

From the code I can see, wrong datatype and a string is not an instance of int, so your code returns None. There is no long type in Python either (at least since 3.x). The function's name should be descending_order instead of ordenar too.