I'm guessing this is an escape-like puzzle as well. I share it with Sam Sikes and he tells me he was able to detach himself from the solid object (in his case a steering wheel) unharmed. I have yet to try it out, but I will as soon as I can get myself to some rope!!
Those of you who are not sure about the process - here you go. Set up the rope around a solid object as shown (notice the lower loop in the picture goes over the bend). After the set up, put your hands into the loops - one hand per loop - and then try to detach yourself from the solid object without taking your hands out of the loops or untying the knots in the loops.
Let me know how it goes!!
All the best,