Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 Nf6 2. c4 d5 3. cxd5 Qxd5 4. e4 Qxe4+ 5. Ne2 Nc6 6. Nc3 Qg6 7. Nf4 Qf5 8.
Bd3 Qa5 9. d5 Nxd5 *
Position (FEN): r1b1kb1r/ppp1pppp/2n5/q2n4/5N2/2NB4/PP3PPP/R1BQK2R w KQkq - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 1131
Best move: Nxd5