Finished

Done

Done, no green.

start

ding

done

Decided to solve this on differently: instead of my usual start of finding all the obvious spots for #'s 1-9, I decided to start with the "weak" spots: wherever there were four or fewer holes in a box, row or column. Swiftly solved, made for a fun puzzle.

dng

Just got easier and easier. 18.

Difficulty score 9. No green.

go

done

Done