Chess puzzle (Crushing)
Opening: London_System, London_System_Other_variations
Moves: 1. d4 Nf6 2. Nf3 g6 3. Bf4 d5 4. e3 Bg7 5. Bd3 O-O 6. O-O b6 7. c3 Ba6 8. Ne5
Bxd3 9. Qxd3 Nfd7 10. Nxd7 Qxd7 11. Nd2 c6 12. Nf3 Qe6 13. Rfe1 Nd7 14. e4 Nf6
15. e5 h6 *
Position (FEN): r4rk1/p3ppb1/1pp1qnpp/3pP3/3P1B2/2PQ1N2/PP3PPP/R3R1K1 w - - 0 16
White to move.
Themes:  Middlegame  
Puzzle rating: 1120
Best move: exf6