Chess puzzle (Crushing)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 e6 3. e3 Nf6 4. Nf3 Nh5 5. Bg5 Nf6 6. Nbd2 Be7 7. Ne5 O-O 8. c3
Nbd7 9. Bd3 Nxe5 10. dxe5 Nd7 11. Bxe7 Qxe7 12. Nf3 Nc5 13. Bc2 Ne4 14. O-O b6
15. Bxe4 dxe4 16. Qd4 *
Position (FEN): r1b2rk1/p1p1qppp/1p2p3/4P3/3Qp3/2P1PN2/PP3PPP/R4RK1 b - - 1 16
Black to move.
Themes:  Middlegame  
Puzzle rating: 1070
Best move: exf3