Hmm. I am not sure that the 5x5 grid can be solved without taking risks. But it might work with some extra rules. For example, displaying if the tile has NO neighbouring bomb.
Edit : It is still possible to progress though... very interresting take on minesweeper.
I've tried it a few times now, and so far I haven't gotten a single board that requires guessing other than when starting. (I start with the 4 courners).
