Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Other_variations
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. cxd5 exd5 6. Nf3 Nc6 7. Qb3 Be6 8.
e3 b6 9. Bd3 O-O 10. Qc2 h6 11. Bxf6 Bxf6 12. e4 Re8 13. O-O-O Bxd4 *
Position (FEN): r2qr1k1/p1p2pp1/1pn1b2p/3p4/3bP3/2NB1N2/PPQ2PPP/2KR3R w - - 0 14
White to move.
Themes:  Middlegame  
Puzzle rating: 1742
Best move: exd5