Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_OKelly_Variation
Moves: 1. e4 c5 2. Nf3 a6 3. c4 e6 4. Nc3 Nf6 5. d4 cxd4 6. Nxd4 Qc7 7. a3 Nc6 8. Be3
Ne5 9. Rc1 Nxc4 10. Bxc4 Qxc4 11. Nd5 Qa2 12. Nc7+ Kd8 13. Nxa8 Qxb2 14. O-O
Qxa3 15. Nb5 axb5 16. Rxc8+ Kxc8 17. Qc2+ Kb8 18. Qc7+ Kxa8 *
Position (FEN): k4b1r/1pQp1ppp/4pn2/1p6/4P3/q3B3/5PPP/5RK1 w - - 0 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 824
Best move: Qd8#