Really neat to see actual knots and ropes in a puzzle game! I've managed to make it to the last 2 levels and might go back to try and finish it off later :)
Controlling this in a puzzlescript format is probably the main issue which you all have probably already gotten feedback on. I think the difficulty ceiling could be expanded lot further if the game has graphics that make it easier to visualize things + controls that make it easier to grasp how to manipulate the positions of entangled ropes (it took me a long time to understand how to do the "cross" level in terms of just moving one loop of rope around another loop).
It was a lot of fun though and really neat to see a puzzle game that uses rope and knots in the knot theory sense!
Almost forgot to mention, the music is lovely and fits the game theme well. I'm a big fan of it!