Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 Qa5 6. Bd2 Qd8 7. d5 a6 8. Bd3
b5 9. a3 Bb7 10. Nf3 Nbd7 11. b4 e6 12. O-O exd5 13. exd5 Nxd5 14. Nxd5 Bxd5
15. Re1+ Be7 16. Bc3 O-O 17. Bb1 Bf6 18. Qd3 Bxf3 *
Position (FEN): r2q1rk1/3n1ppp/p2p1b2/1p6/1P6/P1BQ1b2/5PPP/RB2R1K1 w - - 0 19
White to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 918
Best move: Qxh7#