Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Morphy_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. d3 O-O 8. Nc3
d6 9. a4 Rb8 10. h3 Be6 11. Nd5 Bxd5 12. exd5 Na5 13. Ba2 b4 14. Bd2 Qd7 15.
Qe1 Qxa4 *
Position (FEN): 1r3rk1/2p1bppp/p2p1n2/n2Pp3/qp6/3P1N1P/BPPB1PP1/R3QRK1 w - - 0 16
White to move.
Themes:  Middlegame  
Puzzle rating: 1308
Best move: Bc4