I read from this website (example 2) that you can win the game in the following situation:
[Title "Black to move - Black's POV"] [fen "8/8/8/5PK1/1r1k4/8/8/8 b - - 0 59"]
I play as black. I want to keep the rook and king to win the game, and prevent him from queening. I can't let my rook be captured.
But he doesn't finish the game. He just says "And in this position you'll always be able to win the pawn and the game." But I don't see how I can intrude with my king to the queening square.
How can this game play out?