Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. cxd5 Nxd5 4. e4 Nb6 5. Nc3 e6 6. Nf3 c5 7. Bb5+ Bd7 8.
Bxd7+ N8xd7 9. O-O cxd4 10. Qxd4 e5 11. Qd1 Bb4 12. Nd5 Nxd5 13. Qxd5 O-O 14.
Qxb7 Nb6 15. b3 Bc3 16. Rb1 Qd3 17. Ba3 Rfd8 18. h3 *
Position (FEN): r2r2k1/pQ3ppp/1n6/4p3/4P3/BPbq1N1P/P4PP1/1R3RK1 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1732
Best move: Rd7