Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Steinitz_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. c3 Nf6 5. O-O g6 6. d4 exd4 7. Nxd4 Bd7 8. f3
Ne7 9. Bg5 Bg7 10. Nd2 O-O 11. Qe2 c5 12. e5 dxe5 13. N4b3 h6 14. Bxf6 Bxf6 15.
Nxc5 Bxb5 16. Qxb5 Qxd2 17. Nd7 a6 *
Position (FEN): r4rk1/1p1Nnp2/p4bpp/1Q2p3/8/2P2P2/PP1q2PP/R4RK1 w - - 0 18
White to move.
Themes: Hanging Piece, Kingside Attack Middlegame  
Puzzle rating: 821
Best move: Nxf6+