Done, no green.

Done

DING. Real easy.

Start

Did it.

Done, basic puzz

done

Go!

go

done ng.

go

done, no greens

ding

Go

Done with greens

done,had restart with greens,these are hardest for me (med)dont know why

go

done

Helibori -- you are not alone in finding the mediums the hardest. I think it is because the technique which distinguishes a puzzle as Medium (I call it virtual cross-hatching), must often be used in combination with another technique (which I call a missing digit scan).

Difficulty score 39. No green.

Dr_god recommends that we all backup our computers...

...unfortunately, mine doesn't have a reverse gear!

Done, no greens or guesses. Go me! Cha cha cha!

. . . Also, drwho, you just made me laugh.

done, one guess

have you ever felt cold just listening to the wind?

done