While Ouroboros lets you select any puzzle from the start of the game, it can still be quite frustrating when you simply can't figure one out one level whatever your try, meaning the game remains uncompleted. Even if you don't care so much about completion, you may still be curious about solutions or only figured out the puzzle halfway through and want to know what part you're missing. Whatever the reason, many people at some point want to be able to look up solution to puzzles in a puzzle game.

So I made a walkthrough. While I normally prefer text-based guides that's rather difficult with a game like this, and would be rather labour-intensive to made. So instead I just recorded a playthrough on YouTube:

Unfortunately YouTube no longer seems to give you tools with which a viewer could easily navigate to some level X. So instead, I just added timestamps for every set of 10 levels in the description. Apparently YouTube should turn those into video chapters but whether that works or not depends on a whole bunch of non-transparent and obtuse factors. Lovely. Anyway, luckily the game happens to display the level number at the bottom, so it should be relatively easy to fast-forward to whatever puzzle you're looking for.