Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Taimanov_Variation
Moves: 1. e4 c5 2. d4 cxd4 3. Nf3 Nc6 4. Nxd4 e6 5. Nxc6 bxc6 6. Nc3 Be7 7. Bd3 d6 8.
O-O Nf6 9. Bf4 O-O 10. e5 dxe5 11. Bxe5 Nd5 12. Nxd5 cxd5 13. Qh5 g6 14. Qh6 f6
15. Bxg6 hxg6 16. Qxg6+ Kh8 17. f4 fxe5 18. Rf3 Rf7 19. Rh3+ Rh7 *
Position (FEN): r1bq3k/p3b2r/4p1Q1/3pp3/5P2/7R/PPP3PP/R5K1 w - - 4 20
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 734
Best move: Qxh7#