Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Cozio_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. O-O g6 5. d4 exd4 6. Nxd4 Bg7 7. Be3 O-O 8.
c4 a6 9. Ba4 Ne5 10. Qe2 d6 11. h3 Bd7 12. Bxd7 Qxd7 13. Nc3 f5 14. exf5 Nxf5
15. Nxf5 Rxf5 16. Nd5 Raf8 17. Rad1 c6 18. Nc3 Qe6 19. b3 *
Position (FEN): 5rk1/1p4bp/p1ppq1p1/4nr2/2P5/1PN1B2P/P3QPP1/3R1RK1 b - - 0 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1176
Best move: Nf3+