Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Pin_Variation
Moves: 1. e4 e6 2. Nf3 c5 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 Bb4 6. Bd2 Bxc3 7. Bxc3 Nxe4
8. Qd3 Nxc3 9. Qxc3 O-O 10. O-O-O Nc6 11. Nf3 d5 12. Kb1 Bd7 13. Bb5 a6 14. Ba4
b5 15. Bb3 b4 16. Qd3 a5 17. c3 a4 18. Bc2 b3 *
Position (FEN): r2q1rk1/3b1ppp/2n1p3/3p4/p7/1pPQ1N2/PPB2PPP/1K1R3R w - - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 472
Best move: Qxh7#