spiral of despair

This actually looks very hard, but if you put your mind into it and think, there HAS to be a solution for this.

Anyways great and impressive level! (O_o

I've placed that lump under the spiral intentionally, otherwise it cold be solved with rope and weight :D

I didn't find a clever way, how to solve it, just a stupid one :D

A good challenge, though I would add to get rid of the imperceptible lump on the bottom - it can be solved without it.