Chess puzzle (Checkmate)
Opening: Four_Knights_Game, Four_Knights_Game_Italian_Variation
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. O-O d6 6. h3 h6 7. d3 a6 8. Be3
Nd4 9. a3 O-O 10. Nb1 Bxh3 11. gxh3 Qd7 12. Nxd4 exd4 13. Bd2 Qxh3 14. f3 Qg3+
15. Kh1 Nh5 16. Qe2 Qh3+ 17. Qh2 Ng3+ 18. Kg1 *
Position (FEN): r4rk1/1pp2pp1/p2p3p/2b5/2BpP3/P2P1Pnq/1PPB3Q/RN3RK1 b - - 8 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1845
Best move: Qxf1#