There are really only two tricky parts to this level. The first is figuring out what initial path to take. Once you get to the below, you’ve solved the hardest part of the level already:
The other tricky part is… well not even that tricky, so I’ll let you figure out the rest.
This is one of those levels that I thought wasn’t too bad when I created it, but after subsequently forgetting how I built it and replaying it again and again, I found it actually quite tricky. My preferred solution (having now forgotten my original solution) is to circle around all the red tiles in the middle first, to get to this position:
There’s still a small trick with the red tiles at the bottom, but follow the general principle of working from the outside in and you should be good. Also, there’s no way (I can see) to avoid creating an ugly-looking end somewhere, so don’t think you’ve messed up too early.
This level has one key trick. Try to get to the position in the below screenshot, and it shouldn’t be too hard from there on:
The trickiest part about this level is the circled set of tiles below:
There’s no way to get around it; these tiles force you to create an end somewhere (or outright get stuck). My preferred path is to go as follows:
From this point on, you know where the end is. Just be careful not to create any more ends as you traverse back and forth in the middle.
We covered this in the general strategy section. This level is fairly straightforward once you figure out where the end is (see below):
Just make sure you leave that section for the end (so start from either the top or the bottom and work your way around).
The key to beating this level is recognizing the same trick in Medium – 8: the formation of two red tiles separated by two yellow tiles is best solved by stepping on only one of the yellow tiles, then stepping back. For example, once you get to the below position, it shouldn’t be too hard to see a solution path.
Begin by going to the right, then down to get to the following position:
Of course now you need to go back up and left.
For the bottom part, there are multiple places where you can create an end; just be careful not to create more than one end (see: general strategy).
The hardest part of this level is the beginning. The key is to recognize that this is the position you want to continue from:
The only other potentially tricky piece is recognizing the end (which is the top left corner of the I).
I recommend reading the general strategy before going to the hints for specific levels below.
Hints and Strategy for Specific Levels:
Why not post videos for each level?
I have a few recordings of me completing the levels, but I feel that it ruins the satisfaction and enjoyment if you are just copying someone else’s moves from start to end (more on this under design philosophy). With hints, I provide the solution for a few key challenging areas, and otherwise try to push you in the right direction, so that in the end, it’s still your effort and thinking that got you through the level.
My suggestion: begin by stepping only on red blocks, to get to the below:
Then clear out 6 yellow tiles:
The rest shouldn’t be too bad.