Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 Nf6 2. c4 d5 3. Nf3 e6 4. e3 c5 5. dxc5 Bxc5 6. cxd5 O-O 7. Nc3 Bb4 8.
Be2 Nxd5 9. Bd2 Nxc3 10. Bxc3 Nc6 11. O-O Bxc3 12. bxc3 b6 13. Nd4 Bb7 14. Qa4
Qd5 *
Position (FEN): r4rk1/pb3ppp/1pn1p3/3q4/Q2N4/2P1P3/P3BPPP/R4RK1 w - - 4 15
White to move.
Themes:  Middlegame  
Puzzle rating: 1206
Best move: Bf3