This one is surprisingly similar to Gorgievs version of the Adamson endgame. One of the subtleties added is the black king forced to delay the promotion of his own f-pawn for one move, enabling white to reach the safe 8th row.
As a study this one is somewhat superior to the forementioned Adamson/Gorgiev pair but so it should be with one extra pawn in the diagram!
White to move and draw
Composed by Nikolai Grigoriev (Russia)
Published in Schachmatny Listok 1925