Problem A by T.W. Beakbane. White mates in two moves from any side of the board.
FEN 8/8/5N2/2BpkpK1/6bR/1r2nR2/3P4/5Q2 w - - 0 1
Problem B by G. Corrias. White mates in three moves from any side of the board.
FEN 8/5pP1/N4pNR/1Pp5/1p2kPp1/1R4Bb/B2P4/3K4 w - - 0 1
Problem C by J. Keeble. White mates in four moves from any side of the board.
FEN 4N3/1pp5/1p2P3/6P1/k2P4/8/K1P5/4B3 w - - 0 1