Chess puzzle (Advantage)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Old_Variation
Moves: 1. d4 d5 2. c4 dxc4 3. e3 Be6 4. Nc3 c6 5. a4 Nf6 6. Nf3 Nd5 7. Bxc4 *
Position (FEN): rn1qkb1r/pp2pppp/2p1b3/3n4/P1BP4/2N1PN2/1P3PPP/R1BQK2R b KQkq - 0 7
Black to move.
Themes:  Opening  
Puzzle rating: 937
Best move: Nxc3