Chess puzzle (Advantage)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Other_variations
Moves: 1. d4 d5 2. c4 dxc4 3. Nc3 Be6 4. Bf4 c6 5. e3 Nf6 6. Qa4 b5 7. Nxb5 *
Position (FEN): rn1qkb1r/p3pppp/2p1bn2/1N6/Q1pP1B2/4P3/PP3PPP/R3KBNR b KQkq - 0 7
Black to move.
Themes:  Middlegame  
Puzzle rating: 1242
Best move: cxb5