Hugh Blandford
1st prize, Springaren thematic tourney
(for underpromotion studies with five men only) award: February
1949

Diagram:
White: Kd7, Bc3; pawn - c2
Black: Ka7, Nf1
White to move and win

1.Bd4+ Ka8! 2.c4 Nd2 3.c5 Nb3 4.c6 Na5/i 5.c7 Nc6! 6.c8R+!/ii
Nb8+ 7.K any (except Kc7??).
i) Nxd4 5.c7 Nb5 6.c8Q+ wins, but not 6.c8R+? Kb7, draw.
ii) 6.c8Q+? Nb8+ 7.K- stalemate, the deep point behind Black's first
move.

Very few studies are more frequently quoted. This is No.1456 in the
FIDE ALBUM 1945-55.