I came across this interesting puzzle and have failed to crack it for more than three days. Can you solve it?
L=9, 20, [2x5], 6, 17, 13
The only tips I have for this is that you should pay attention to the description on the page the link takes you to.
The answer is probably obvious but I am in a three day haze at the moment and I cannot seem to see any logic to this puzzle anymore.
Edit: As requested by JGibbers, the puzzle started with an image.This is all you need to reach the last puzzle above.
The only hint available was this link https://futureboy.us/stegano/decinput.html.
I already solved all of this but why should I deny all of you the satisfaction of cracking them? Good luck.