Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Other_variations
Moves: 1. d4 d5 2. c4 e6 3. e3 Nf6 4. Nf3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 O-O 7. Nc3 Nc6 8.
Bd3 b6 9. O-O Ba6 10. h3 dxc4 11. Be2 Re8 12. Qc2 Nb4 *
Position (FEN): r2qr1k1/p1p2ppp/bp2pn2/8/1npP4/2N1PN1P/PPQ1BPP1/R4RK1 w - - 4 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1338
Best move: Qa4