Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Exchange_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Nf6 6. Nxe5 Qe7 7. d4 c5 8.
c3 b5 9. Re1 Bb7 10. Bg5 cxd4 11. cxd4 h6 12. Bxf6 Qxf6 13. Qc2 Bd6 14. Nf3 Qg6
15. Qe2 O-O 16. e5 Rfe8 17. Nbd2 Bb4 18. a3 *
Position (FEN): r3r1k1/1bp2pp1/p5qp/1p2P3/1b1P4/P4N2/1P1NQPPP/R3R1K1 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1842
Best move: Bxd2