Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_French_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. Bd3 Nc6 4. c3 d6 5. Bc2 Nf6 6. O-O Be7 7. a4 O-O 8. Re1
b6 9. d4 cxd4 10. cxd4 e5 11. Nc3 exd4 12. Nxd4 Nxd4 13. Qxd4 Be6 14. Bg5 Rc8
15. Rad1 h6 16. Bh4 Rc4 17. Qd3 Qc8 18. e5 dxe5 19. Bxf6 Bxf6 *
Position (FEN): 2q2rk1/p4pp1/1p2bb1p/4p3/P1r5/2NQ4/1PB2PPP/3RR1K1 w - - 0 20
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 813
Best move: Qh7#