Took me a while to realize I was supposed to find the bombs, not isolate them, but I got the hang of it.
Not sure if this would be too far from your plan for this game, but I like the idea of opening cells being your energy source, and mines are possible self-damage?
That way, energy is more consistent (maybe directly related to the numbers on clues you find, and inflate energy values on everything to balance?), and also opens up possible self-damage builds. Sorry if this is a lot of ideas at once!