They may trying to use the function(s) in the module itertools but the failed or find out that they don't need it.
And that's why they leave the code 'import itertools' undeleted.

But I am a dumbass so I will use itertools.permutations to solve it.

elegant and clean

but for a long time I tried to understand why this )))
I`m innocent ))

:)

There no needs of itertools. I have forgot to delete this line.

There is nothing stopping a solution from sharing states externally:

https://www.codewars.com/kata/reviews/55fb9664568d9cf1a900001c/groups/5bbb03fbb684d31c75000451

Could somebody subtitle what the defining property of a curve "like this" is? I don't feel like reverse engineering it.

Added the relevant information.

the coordinate system is completely unexplained (not only the azimuth, but where is east or north according to the axis, or around which axis the sun crosses the sky, or even which direction is up)

the face definitions on the tests seems not consistently clockwise or counterclockwise (neither the instructions alert that they should be treated as double sided)

a graphical debug helper would be nice, I make a crude one on my solution.

Changed to "the function tick() will be called a few times between and after the sends", is it better?