Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Chigorin_Defense
Moves: 1. d4 d5 2. c4 Nc6 3. e3 dxc4 4. Bxc4 a6 5. Nc3 e6 6. Nge2 b5 7. Nxb5 *
Position (FEN): r1bqkbnr/2p2ppp/p1n1p3/1N6/2BP4/4P3/PP2NPPP/R1BQK2R b KQkq - 0 7
Black to move.
Themes:  Opening  
Puzzle rating: 1468
Best move: axb5