Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 Nf6 2. c4 d5 3. Nc3 dxc4 4. e4 Nc6 5. d5 Ne5 6. Qd4 Qd6 7. Bf4 Nfd7 8.
Nb5 Qb4+ 9. Nc3 Qxb2 *
Position (FEN): r1b1kb1r/pppnpppp/8/3Pn3/2pQPB2/2N5/Pq3PPP/R3KBNR w KQkq - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 1731
Best move: Rb1