Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Exchange_Variation
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Be7 5. Nc3 Nf6 6. Bd3 O-O 7. h3 c5 8. Nf5
Nc6 9. Nxe7+ Qxe7 10. O-O Ne5 11. Be2 a6 12. f4 Ng6 13. Bd3 b5 14. Qf3 c4 15.
e5 Bb7 *
Position (FEN): r4rk1/1b2qppp/p2p1nn1/1p2P3/2p2P2/2NB1Q1P/PPP3P1/R1B2RK1 w - - 1 16
White to move.
Themes:  Middlegame  
Puzzle rating: 1497
Best move: exf6