Chess puzzle (Checkmate)
Opening: Italian_Game, Italian_Game_Paris_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. d3 Bg4 5. h3 Bh5 6. g4 Bg6 7. Nh4 Qxh4 8. Be3
O-O-O 9. Nc3 Nf6 10. Bb5 Nxg4 11. Bxc6 bxc6 12. Bxa7 Nf6 13. Qd2 Bh5 14. Na4 d5
15. Qa5 dxe4 16. Nc5 e3 *
Position (FEN): 2kr1b1r/B1p2ppp/2p2n2/Q1N1p2b/7q/3Pp2P/PPP2P2/R3K2R w KQ - 0 17
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 991
Best move: Qa6#