Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Bc4 d6 3. Nf3 Be7 4. a3 Nf6 5. d3 O-O 6. h3 c6 7. Be3 h6 8. h4 Kh7
9. h5 Bg4 10. Nbd2 Bxh5 11. c3 Bg6 12. Nf1 Ng4 13. Bd2 f5 14. exf5 Bxf5 15. Qc1
g5 16. Nxg5+ Kg6 17. f3 Bxg5 18. Bxg5 hxg5 *
Position (FEN): rn1q1r2/pp6/2pp2k1/4pbp1/2B3n1/P1PP1P2/1P4P1/R1Q1KN1R w KQ - 0 19
White to move.
Themes:  Middlegame  
Puzzle rating: 1007
Best move: fxg4