Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Delayed_Alapin
Moves: 1. e4 c5 2. Nf3 d6 3. c3 e5 4. a3 Nc6 5. Bc4 Be7 6. d4 cxd4 7. cxd4 exd4 8. Ba2
Nf6 9. O-O Bg4 10. Re1 Ne5 11. Qa4+ Ned7 12. Nxd4 O-O 13. Nc3 Nc5 14. Qc2 a6
15. Be3 b5 16. Rad1 Bd7 17. Bb1 Ng4 18. e5 Nxe3 *
Position (FEN): r2q1rk1/3bbppp/p2p4/1pn1P3/3N4/P1N1n3/1PQ2PPP/1B1RR1K1 w - - 0 19
White to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 1507
Best move: Qxh7#