Chess puzzle (Advantage)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Old_Variation
Moves: 1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4 a6 5. axb5 Qd5 6. bxa6 Rxa6 7. Rxa6 Nxa6 8.
Qa4+ Qd7 9. Qxd7+ Bxd7 10. Bxc4 Nb4 11. Bb3 *
Position (FEN): 4kbnr/2pbpppp/8/8/1n1P4/1B2P3/1P3PPP/1NB1K1NR b Kk - 2 11
Black to move.
Themes:  Middlegame  
Puzzle rating: 1061
Best move: Nd3+