Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be3 Qc7 6. Nc3 Bb4 7. Qd2 Nf6 8. f3
d5 9. Bf4 e5 10. Nf5 Bxf5 11. Bxe5 Qxe5 12. O-O-O Bxc3 13. bxc3 dxe4 *
Position (FEN): rn2k2r/1p3ppp/p4n2/4qb2/4p3/2P2P2/P1PQ2PP/2KR1B1R w kq - 0 14
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 401
Best move: Qd8#