Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. e3 Bf5 4. Nf3 e6 5. Be2 g6 6. O-O Bg7 7. Nc3 O-O 8. b3
Nc6 9. Bb2 Re8 10. Nh4 Qd6 11. Nxf5 exf5 12. cxd5 Ne7 13. Nb5 Qd7 14. Rc1 Nexd5
15. Bf3 *
Position (FEN): r3r1k1/pppq1pbp/5np1/1N1n1p2/3P4/1P2PB2/PB3PPP/2RQ1RK1 b - - 1 15
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1049
Best move: Qxb5