Done.

Done

Done

done

start

ding

done

go

Interesting unique rectangle argument combined with virtual and line crosshatch. Can't remember seeing anything quite like it before.

Did it, no green. Pretty good. I should have added that the interesting unique rectangle also involved a difficult to see pair.

go

done

Difficulty score 22. No green.

I think the score should have been higher. There were 1 or 2 loners that were hard for me to see.

Done.