Chess puzzle (Checkmate)
Opening: Modern_Defense, Modern_Defense_Kotov_Variation
Moves: 1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4 Nc6 5. Be3 e5 6. d5 Nd4 7. g4 Ne7 8. h4 h5
9. g5 c5 10. dxc6 Nexc6 11. Nge2 *
Position (FEN): r1bqk2r/pp3pb1/2np2p1/4p1Pp/2PnP2P/2N1B3/PP2NP2/R2QKB1R b KQkq - 1 11
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1346
Best move: Nf3#