Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. h3 Nf6 4. Bc4 Be7 5. O-O c6 6. d4 d5 7. dxe5 Nxe4 8. Bb3
O-O 9. a3 f6 10. exf6 Nxf6 11. Re1 Bc5 12. Bg5 Qc7 13. Bxf6 Rxf6 14. Re8+ Rf8
15. Rxf8+ Kxf8 16. Nc3 Bf5 17. Ng5 h6 *
Position (FEN): rn3k2/ppq3p1/2p4p/2bp1bN1/8/PBN4P/1PP2PP1/R2Q2K1 w - - 0 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1557
Best move: Nxd5