mathstodon.xyz is one of the many independent Mastodon servers you can use to participate in the fediverse.
A Mastodon instance for maths people. We have LaTeX rendering in the web interface!

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I'm either blind or this is a really tough one.

[No guessing mode, evil]

Elizabeth

@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.

@ejk

Brilliant, thank you! Not that tough after all, now I don't know how I missed that 😆