I am interested in the following exchange-down endgame (assume White to move):
[fen "6k1/5ppp/8/8/1r6/5KP1/5P1P/5B2 w - - 0 1"]
In particular, I am wondering whether this is objectively drawn (my hunch) or whether Black has a winning advantage. But really I'm after more than just the assessment of the position.
My real interest is in knowing whether a drawing method for White or a winning method for Black can be explained in a relatively simple way. (If it can, I'm hoping for a demonstration of that fact as an answer.)
I'll say a little more about what I'm after. (First, what I'm not after: a synopsis of your engine's analysis. I have engines too. And the fact that, e.g. Stockfish gives this position -3.00 or so just doesn't signify all that much.) Consider the endgame where Black has no men left, while White has a rook pawn and the wrong-colored bishop. The drawing method there (assuming the black king has access to the queening square) is so simple that it can be quickly explained to a novice, and she'd be able to hold against any world champion.
The endgame I'm asking about here is more complex, of course, and any reasonably complete explanation of how to handle it will be correspondingly more complex as well. But I'm still hopeful that a fairly concise explanation of how to handle it (either how to win for Black or how to draw for White) can be given; and like the rook-pawn-and-wrong-bishop ending, I'm hoping for the sort of explanation that a relatively weak player could use as a reliable recipe for correct play.
No doubt, I'm setting a high bar for an answer here, but I think a good answer along the lines I'm asking for would be very valuable. And even if this particular position ultimately can't be explained well in this way, in more general terms, I think a large body of solid questions about common sorts of positions like this one, and especially answers offering clear, short verbal explanations of these positions, would be well suited to this site, and could also make it a useful reference, offering a sort of free, collective middlegame and endgame manual.