Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 a6 6. h3 e6 7. g3 d5 8. exd5
Nxd5 9. Bg2 Nxc3 10. bxc3 Qc7 11. O-O Bd6 12. Qg4 O-O 13. Bh6 Be5 14. Rae1 f5
15. Nxf5 exf5 16. Bd5+ Kh8 17. Qb4 Rd8 18. Bg5 Rxd5 *
Position (FEN): rnb4k/1pq3pp/p7/3rbpB1/1Q6/2P3PP/P1P2P2/4RRK1 w - - 0 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 616
Best move: Qf8#