Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Classical_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O d6 5. c3 a6 6. Ba4 b5 7. Bc2 Nf6 8. d4
exd4 9. cxd4 Ba7 10. Bg5 h6 11. Bxf6 Qxf6 12. Nc3 Nxd4 13. Nxd4 Bxd4 *
Position (FEN): r1b1k2r/2p2pp1/p2p1q1p/1p6/3bP3/2N5/PPB2PPP/R2Q1RK1 w kq - 0 14
White to move.
Themes:  Middlegame  
Puzzle rating: 1159
Best move: Nd5