Chess puzzle (Checkmate)
Opening: Italian_Game, Italian_Game_Evans_Gambit_Declined
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. O-O d6 6. c3 Nf6 7. d3 h6 8. Nbd2
O-O 9. Bb2 Qe7 10. d4 Bg4 11. dxe5 Nxe5 12. h3 Bxf3 13. gxf3 Nh5 14. Kh2 Qf6
15. Bd5 Qf4+ 16. Kh1 Ng3+ 17. fxg3 Qxg3 18. f4 *
Position (FEN): r4rk1/ppp2pp1/1b1p3p/3Bn3/1P2PP2/2P3qP/PB1N4/R2Q1R1K b - - 0 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1142
Best move: Qxh3#