Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Exchange_Variation
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 c5 5. Nb3 Be6 6. Bb5+ Nc6 7. Na5 Qxa5+ 8.
Nc3 Ne7 9. Bd2 Qb6 10. a4 a6 11. a5 Qc7 12. Be2 g6 13. O-O Bg7 14. f4 O-O 15.
Bd3 Rad8 16. f5 gxf5 17. exf5 Bc8 *
Position (FEN): 2br1rk1/1pq1npbp/p1np4/P1p2P2/8/2NB4/1PPB2PP/R2Q1RK1 w - - 1 18
White to move.
Themes:  Opening  
Puzzle rating: 1171
Best move: f6