They showed me on the board, the engine barometer went crazy, but I still have no clue about why Qe7 was crushing. I've come a long way in the past few years in my chess ability (especially tactically), but I just can't wrap my head around the
seven hundred centipawn difference Qe7 makes in that position. I guess the position does look a bit like a tactics puzzle in the sense of "if that rook weren't guarding g7 it's checkmate, so how can I force it away", but can I?
What's the threat?
Of course they said the threat is h2-h4-h5.
But what's the threat?