Level13 is easy, really ! You've disappointed me, Erik. I've heard so many bad things about Level13, and it took me around half an hour to finish.
Seriosly, people, nobody heard about
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×Left hand rule
for mazes ? I couldn't wait to test it on Level13, and, unfortunatelly, it's vulnerable ! It wasn't necessary to mark my way, think, care where I am and what I see. Simply use the trick.
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× For those, who haven't heard about Left Hand Rule: most mazes can be defeated using it. All you have to do is:
1) Have a wall on your left side
2) go forward, and always turn to have the wall on your left side.
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