Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Cozio_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 a6 7. Bc4 d6 8.
Nc3 Nc6 9. Qd2 Be7 10. a3 O-O 11. O-O Be6 12. Bd3 f5 13. Nd5 fxe4 14. Nxe7+
Qxe7 15. Bxe4 Na5 *
Position (FEN): r4rk1/1pp1q1pp/p2pb3/n7/4B3/P7/1PPQ1PPP/R1B2RK1 w - - 1 16
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1266
Best move: Qxa5