Chess puzzle (Checkmate)
Opening: Center_Game, Center_Game_Kieseritzky_Variation
Moves: 1. e4 e5 2. d4 exd4 3. Nf3 d5 4. Qxd4 Nc6 5. Qxd5 Nf6 6. Qxf7+ Kxf7 7. Bc4+ Ke8
8. Ng5 Qd4 9. Bf7+ Kd7 10. Be6+ Kd6 11. Nc3 Bxe6 12. Nb5+ Ke5 *
Position (FEN): r4b1r/ppp3pp/2n1bn2/1N2k1N1/3qP3/8/PPP2PPP/R1B1K2R w KQ - 2 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1899
Best move: f4#