Just played it vs lichess I can't force the computer to defend better. In any case its the same general principle. Move king forward check king back. The only way I could see anyone struggling with this is if they make no effort to advance their king.
Yeah it shouldn't be that bad. Things are always harder in a practical game though
I wish someone would write an article on how to play rook and pawn end games especially under time pressure.
Good idea, I might write a blog post about that sometime soon!