Should white be able to win from the position
[fen "8/5k2/3p1p2/3PnP2/1KP1r1P1/8/3RB3/8 b - - 0 67"]
with black to move?
(A game I was playing ended there when black just let
black's time run out due to having very little of it left.)
Black can take the g4 pawn, but Stockfish evaluates that as being much worse than
black's alternatives, regardless of whether the capture is immediate or after Ke7 Kb5.
Thus, play should presumably continue Ke7 Kb5 Nd7, resulting in the position
[fen "8/3nk3/3p1p2/1K1P1P2/2P1r1P1/8/3RB3/8 b - - 0 69"]
with white to move. From that position, Bd1 is the only way Stockfish sees to make progress.
However, after Bd1, Stockfish thinks black should play Ne5, and then the line it gives is
4. c5 dxc5 5. d6+ Kd7 6. Kxc5 Nf7 7. Bc2 Re5+ 8. Rd5 Rxd5+ 9. Kxd5 Nxd6 ,
which results in a draw since
with white's pawn still on g4, Nf7 will establish a fortress because black can play Ke7 and N(x)g5 and even if white gives up the g4 pawn, white's king can't attack more than one of {h3,e4,h7}
and the only way for the bishop to do that is from g2, which leaves f7 safe for the knight
and
g5 fxg5 gives a tablebase draw, regardless of whether white plays that immediately
or after Ba4+ Ke7, and Ba4+ Ke7 Be8 Nxe8 gives a tablebase win for black
.
(Reminder: My question was at the top of this post.)