Chess puzzle (Checkmate)
Opening: Benoni_Defense, Benoni_Defense_Benoni_Gambit_Accepted
Moves: 1. d4 c5 2. dxc5 e6 3. Be3 Na6 4. c3 Nxc5 5. Nd2 Nf6 6. f3 Be7 7. Bf2 O-O 8. e4
d6 9. Ne2 *
Position (FEN): r1bq1rk1/pp2bppp/3ppn2/2n5/4P3/2P2P2/PP1NNBPP/R2QKB1R b KQ - 1 9
Black to move.
Themes:  Opening Mate in 1, Smothered Mate 
Puzzle rating: 839
Best move: Nd3#