Chess puzzle (Checkmate)
Moves: 1. d4 Nc6 2. c4 e5 3. dxe5 Nxe5 4. Nd2 Qe7 5. Ngf3 *
Position (FEN): r1b1kbnr/ppppqppp/8/4n3/2P5/5N2/PP1NPPPP/R1BQKB1R b KQkq - 3 5
Black to move.
Themes: Pin Opening Mate in 1, Smothered Mate 
Puzzle rating: 1350
Best move: Nd3#