I'm either blind or this is a really tough one.
[No guessing mode, evil]
@fribbledom The circled 2 means that there must be one mine on either side of the circled 3. Therefore the circled 1 will be satisfied and the x’ d box is safe to click.
Brilliant, thank you! Not that tough after all, now I don't know how I missed that
@ejk @fribbledom I came here to post this