This is a position from a game I played a few days ago. I was white, I had just played Re1 (from f1) and would eventually promote the pawn and win the game. My computer's analysis after the fact insists that Re1 gave my opponent a draw if he played correctly from there. I don't see how and it wasn't clear enough, so I ask you guys.
With black to move, can black prevent the pawn from promoting? If so, can he do it without making a losing material sacrifice?
