Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Berlin_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. Nc3 Bd7 6. Bc4 h6 7. a3 Be7 8. Nd5
Nxd5 9. Bxd5 O-O 10. b4 Rb8 11. Bb2 Be6 12. b5 Na5 13. Bc3 Bd7 *
Position (FEN): 1r1q1rk1/pppbbpp1/3p3p/nP1Bp3/4P3/P1BP1N2/2P2PPP/R2QK2R w KQ - 3 14
White to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1245
Best move: Bxa5