Chess puzzle (Advantage)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Old_Variation
Moves: 1. c4 d5 2. d4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 Ne4 6. a3 Be7 7. Nbd2 Nxd2 8.
Bxd2 O-O 9. Ne5 Bd7 10. Qf3 Nc6 11. Nd3 Na5 *
Position (FEN): r2q1rk1/pppbbppp/4p3/n7/2BP4/P2NPQ2/1P1B1PPP/R3K2R w KQ - 7 12
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1225
Best move: Bxa5