Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Smith-Morra_Gambit
Moves: 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Qe7 7. O-O e5 8.
Bg5 f6 9. Be3 f5 10. exf5 d6 11. Bg5 Nf6 12. Nd5 Qf7 13. Rc1 Nxd5 14. Bxd5 Qxf5
15. Bxc6+ bxc6 16. Rxc6 Bb7 17. Rxd6 Bxd6 18. Qxd6 Bxf3 *
Position (FEN): r3k2r/p5pp/3Q4/4pqB1/8/5b2/PP3PPP/5RK1 w kq - 0 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 990
Best move: Qe7#