Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Chigorin_Defense
Moves: 1. d4 d5 2. c4 dxc4 3. Nc3 Nc6 4. Bf4 Qxd4 5. Qxd4 *
Position (FEN): r1b1kbnr/ppp1pppp/2n5/8/2pQ1B2/2N5/PP2PPPP/R3KBNR b KQkq - 0 5
Black to move.
Themes:  Opening  
Puzzle rating: 1049
Best move: Nxd4