Rubinstein's King and Pawn Masterpiece: Revised

Before many of today's chess publishers were around, bookstores carried Dover paperbacks. One of those I bought is Rubinstein's Chess Masterpieces 100 Selected Games. The book originally came out in 1941. Dover reprinted it in 1960 at a price of $1.25. Dover is still around at DoverPublications.com where the book is available for $8.95. The games were annotated by Hans Kmoch. Playing over the games of great players with notes is an important way to enjoy chess and improve. Also important is developing the ability to go beyond your instructors. I found in the following game an error in Kmoch's analysis. My notes, like the book, were written so long ago that they were in descriptive notation. I wrote a letter to Pal Benko, who had an endgame column in Chess Life, the monthly magazine of the United States Chess Federation. Benko, whose column is still running, published another way Black could win which I think is the way Jonathan Mestel later found. Here is the game with credit to a number of commentators.