Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Steinitz_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. d5 Nd4 6. Bxd7+ Qxd7 7. Nxd4 exd4 8.
Qxd4 Nf6 9. Bg5 Be7 10. Nd2 O-O 11. Nf3 h6 12. Bh4 c5 13. Qd3 b5 14. c4 bxc4
15. Qxc4 Rab8 16. b3 Rb4 17. Qd3 Nxe4 18. a3 *
Position (FEN): 5rk1/p2qbpp1/3p3p/2pP4/1r2n2B/PP1Q1N2/5PPP/R3K2R b KQ - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1677
Best move: Bxh4