Chess puzzle (Checkmate)
Opening: Three_Knights_Opening, Three_Knights_Opening_Other_variations
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 a6 4. d3 h6 5. Be3 Nf6 6. a3 d6 7. Nd5 Be6 8. h3 g5
9. c4 g4 10. hxg4 Nxg4 11. Be2 Nxe3 12. fxe3 Ne7 *
Position (FEN): r2qkb1r/1pp1np2/p2pb2p/3Np3/2P1P3/P2PPN2/1P2B1P1/R2QK2R w KQkq - 1 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1511
Best move: Nf6#