How do I get around this corner?

I'm attempting to complete the game with Ice and Portal only, and that appears to require solving this puzzle, getting to the door at the south side of the room. However, it seems to be impossible even with all items.
I need to either activate or bypass the left gate, which is controlled by (extinguishing) the fire pit. I can use the three available movable blocks to teleport into the square two left of my current position, but this still leaves me unable to aim at the fire pit. I could teleport to directly north of the fire pit, but that's instant death.
This puzzle seems to require me to “go around a corner”, but I don't know of a way to do that (other than mirrors, which aren't in this puzzle).
Small here-is-the-thing-you-haven't-used hints, please; I'm trying to spoil less than a walkthrough would.
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What does it mean to go around the corner?
If you say that something is around the corner, you mean that it will happen very soon. In British English, you can also say that something is round the corner.How do you use round the corner in a sentence?
The thief whipped round the corner and out of sight.Is it round the corner or around the corner?
If you say that something is around the corner, you mean that it is very near. In British English, you can also say that something is round the corner. My new place is just around the corner.What does it mean to be in a corner?
If you are in a corner or in a tight corner, you are in a situation which is difficult to deal with and get out of.Cock Robin - Just Around the Corner
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Images: Ketut Subiyanto, Tatiana Syrikova, Robert Nagy, Armin Rimoldi