Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Marshall_Counterattack
Moves: 1. e4 c5 2. Nf3 e6 3. d4 d5 4. Nc3 dxe4 5. Nxe4 cxd4 6. Nxd4 Bc5 7. Be3 Bxd4 8.
Bxd4 f6 9. Bb5+ Bd7 10. Nd6+ Kf8 11. Bc5 Ne7 12. Qh5 Bxb5 *
Position (FEN): rn1q1k1r/pp2n1pp/3Npp2/1bB4Q/8/8/PPP2PPP/R3K2R w KQ - 0 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 758
Best move: Qf7#