[Unearned5161]

Nice article, I wanted to point out though that your example board at the beginning has no such ambiguities or 50/50's. Here's a recreation of it so you can see for yourself, if you open it up from the bottom left as you did, the 1 2 1 leads to the board being solved rather quickly:

https://agustinfitipaldi.com/minesweeper?seed=eyJ3aWR0aCI6OS...

[greentec]

Yes, that's right. I'll have to update my blog with additional information about this. Thank you!

[badmintonbaseba]

BTW, you can also start from the top right with the two 1s. One of the rightmost two cells contains a mine, so the 3rd from the right can't.