I tend to solve Minesweeper locally as much as possible, solving cordoned off sections where the answer doesn't rely on the rest of the board. A major benefit to doing it this way in traditional implementations is that if I'm forced to guess, the sooner I make an incorrect guess the sooner I move on to a solvable map.
While trying this out I've encountered several sections where I would have to guess, and that guess cannot be influenced by other unrevealed cells, such as when there's an island in a corner of the map.
In these situations I will need to guess between these two spaces, but since there are still known safe areas on the map, guessing causes me to lose the game.
I can get used to that behavior of course, but it's fairly frustrating. It'd be nice if the guessing exception rules accounted for situations like this. When there are clearings or known mine patterns that separate out discrete smaller map(s), I want to solve the smaller map(s) before I move on.