Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. Bc4 Qe7 4. d3 h6 5. O-O Be6 6. Bb3 Bxb3 7. axb3 a6 8. Re1
Qd7 9. Nbd2 Be7 10. Nf1 Bf6 11. Ng3 Ne7 12. Be3 Nbc6 13. c3 O-O 14. b4 Ng6 15.
Qc1 Nh4 16. Nxh4 Bxh4 17. Nf5 Bg5 *
Position (FEN): r4rk1/1ppq1pp1/p1np3p/4pNb1/1P2P3/2PPB3/1P3PPP/R1Q1R1K1 w - - 2 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1266
Best move: Bxg5