I felt the same way. Furthermore, it's a little dissatisfying to not have a unique solution, in terms of characters. If you think of character sets, it's still

I felt the same way. Furthermore, it's a little dissatisfying to not have a unique solution, in terms of characters. If you think of character sets, it's still unique, but it's a bit unsatisfying. I made more progress once I accepted (possibly) non-uniqueness and worked on finding some valid assignment, as opposed to a sole valid assignment. The last dozen clues were increasingly interesting to solve, the intersecting constraints.