Chess puzzle (Checkmate)
Opening: Ponziani_Opening, Ponziani_Opening_Jaenisch_Counterattack
Moves: 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d3 Bc5 5. Be3 Bb6 6. Be2 d6 7. O-O Be6 8. h3
O-O 9. Nbd2 Ne7 10. d4 Ng6 11. Bg5 Re8 12. Rc1 h6 13. Bxf6 Qxf6 14. d5 Bd7 15.
c4 Nf4 16. b3 Bxh3 17. gxh3 Qg6+ 18. Kh2 *
Position (FEN): r3r1k1/ppp2pp1/1b1p2qp/3Pp3/2P1Pn2/1P3N1P/P2NBP1K/2RQ1R2 b - - 2 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 995
Best move: Qg2#