https://en.wikipedia.org/wiki/King_and_pawn_versus_king_endgame
King and pawn versus king endgame - Wikipedia
king and pawnversusendgamewikipedia
https://www.chess.com/article/view/rubinsteins-king-and-pawn-masterpiece
Rubinstein's King and Pawn Masterpiece - Chess.com
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...
king and pawnrubinsteinmasterpiecechess