L.A. Times Problem No. 71 by Alain C. White, Litchfield, Ct. Good Companions, 1918. From 'The Properties of Castling' White mates in two.
FEN 5k1r/7p/1p3K2/5N1N/7Q/5R2/8/8 w - - 0 1
Key: K-B6. If Castles, 2. KN-B7 mate.
L.A. Times Problem No. 72 by J. Hartong. First prize--Op de Hoogte, 1916. Contributed by Louis Sheppard. White mates in two.
FEN 1q6/p3p3/4Pp2/3Q1P2/2PPb2p/1R3BkP/3B2Pb/K2N4 w - - 0 1
Key: Q-R8/Qa8 Q-Q8 defeated by BxB