Chess puzzle (Checkmate)
Opening: Ponziani_Opening, Ponziani_Opening_Jaenisch_Counterattack
Moves: 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. Qc2 d5 5. exd5 Nxd5 6. Bb5 Bd6 7. O-O O-O 8.
d3 Qf6 9. Bg5 Qg6 10. Nbd2 h6 11. Bh4 Bf5 12. Bg3 a6 13. Bc4 Nf4 14. Nh4 Qh5
15. Nxf5 Qxf5 16. Ne4 Ne7 17. Bh4 Qg4 18. Nxd6 *
Position (FEN): r4rk1/1pp1npp1/p2N3p/4p3/2B2nqB/2PP4/PPQ2PPP/R4RK1 b - - 0 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 915
Best move: Qxg2#