Revising this rating to 5 stars. Suddenly had a thought today about design, and gave it some deep thought, and while I personally did not find the design or challenge that substantial, I now do not deny that the design aspect is valuable, and so I have updated accordingly.
Cute puzzle! I somehow managed to once again luck my way out of encountering any 2-offs - I jumped straight from very far off to the solution. The block storage is tricky but enjoyable to work out.
