Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2
Qc7 9. O-O-O b5 10. a3 Bb7 11. g4 Nc5 12. Bg2 Be7 13. Bh4 O-O 14. g5 Nfd7 15.
f5 Ne5 16. f6 Bd8 17. Qh5 g6 18. Qh6 Ng4 *
Position (FEN): r2b1rk1/1bq2p1p/p2ppPpQ/1pn3P1/3NP1nB/P1N5/1PP3BP/2KR3R w - - 2 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 887
Best move: Qg7#