Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Smith-Morra_Gambit_Accepted
Moves: 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Bc4 Nc6 6. Nf3 e6 7. O-O Nf6 8.
Qe2 Be7 9. Rd1 O-O 10. Bg5 Qe8 11. Nb5 Qd7 12. e5 Nd5 13. Bxe7 Ncxe7 14. Nxd6
a6 15. Rac1 b5 16. Bb3 Bb7 17. Bc2 Nc8 18. Qe4 Nxd6 *
Position (FEN): r4rk1/1b1q1ppp/p2np3/1p1nP3/4Q3/5N2/PPB2PPP/2RR2K1 w - - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 838
Best move: Qxh7#