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