One of Loyd's specialties was developing problems with the worst looking obviously wrong move as the key. The "Steinitz Gambit" composed in 1903 is one such problem.
(White: Kf1, Ra5, Rf6, Nb6, Ne4, Bb5, Bg7, b4, d2. Black: Ke5, Re8, Rh2, Bg3, Bg8, Na2, Nh1, a6, b7, c3, e6, f2, h4)
White to move and mate in three moves