Turn Easy Puzzle Into Hard Puzzle

[Xindaris]

So...I made a puzzle, which is very basic and easy to solve. gydagub
The idea of the challenge is to keep some of the basic idea or structure of the bottom part, but to somehow make the puzzle very hard (not impossible, though) to solve. Getting rid of the stuff on the sides is perfectly allowed.

[Werbad]

How about this: sytogubhofugox
Solution: nonevyngohageh

[Madball]

Your solution doesn`t works for 0.

[Werbad]

Noticed, Should still be solveable though.

Edit:
Fixed: gohageh

[Twee]

Did you mean to ban the packer or the unpacker in sytogub? Banning both makes it impossible to solve.

[Xindaris]

Well, the original really easy one had that single packer used in the solution, looks like it was removed and put back in for the solution, when it probably should have just been left, that would've made it solvable by the solution shown.

[jnz]

Try sopokoh.  I don't have a solution for this but I'm not convinced it is impossible either.

[Werbad]

I'm sure I left the original packer in that level... Have a fixed version: hofugox

[Madball]

My entry: bygasaf. It`s not so hard, but it`s harder than before.