Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Four_Knights_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8.
Nxd5 cxd5 9. Bd3 d6 10. Bf4 dxe5 11. Bxe5 f6 12. Qh5+ Ke7 13. Bc3 Bd7 *
Position (FEN): r2q1b1r/p2bk1pp/4pp2/3p3Q/8/2BB4/PPP2PPP/R3K2R w KQ - 4 14
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 900
Best move: Bb4#