Chess puzzle (Checkmate)
Opening: Englund_Gambit_Declined, Englund_Gambit_Declined_Reversed_Brooklyn
Moves: 1. d4 e5 2. Nf3 e4 3. Ng1 d5 4. e3 Nf6 5. Bb5+ c6 6. Bf1 Na6 7. a3 b5 8. Nd2
Rb8 9. Ne2 b4 10. axb4 Nxb4 11. c3 *
Position (FEN): 1rbqkb1r/p4ppp/2p2n2/3p4/1n1Pp3/2P1P3/1P1NNPPP/R1BQKB1R b KQk - 0 11
Black to move.
Themes:  Opening Mate in 1, Smothered Mate 
Puzzle rating: 1008
Best move: Nd3#