Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O Qc7 7. h3 Bc5 8. Nf3
Nc6 9. a3 O-O 10. Bg5 b5 11. Bxf6 gxf6 12. Nc3 Kh8 13. Nh2 Rg8 14. Ng4 Ne5 15.
Nxf6 Rg6 16. Nh5 Bb7 17. Ne2 Nf3+ 18. Kh1 *
Position (FEN): r6k/1bqp1p1p/p3p1r1/1pb4N/4P3/P2B1n1P/1PP1NPP1/R2Q1R1K b - - 6 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 682
Best move: Qh2#