Chess puzzle (Advantage)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Accelerated_Mannheim_Variation
Moves: 1. d4 d5 2. c4 dxc4 3. Qa4+ Nc6 4. Nc3 Qxd4 5. Be3 Qd7 *
Position (FEN): r1b1kbnr/pppqpppp/2n5/8/Q1p5/2N1B3/PP2PPPP/R3KBNR w KQkq - 2 6
White to move.
Themes:  Opening  
Puzzle rating: 1504
Best move: Rd1