Chess puzzle (Advantage)
Moves: 1. d4 d5 2. c4 dxc4 3. Qa4+ Bd7 4. Qxc4 e6 5. e4 Nc6 6. Nf3 Nf6 7. Nbd2 Be7 8.
a3 h6 9. Be2 O-O 10. O-O Na5 11. Qc2 b6 12. b4 Nb7 13. Bb2 c5 14. bxc5 bxc5 15.
dxc5 Nxc5 16. Ne5 Ba4 17. Qc1 Rc8 18. Ndf3 Ncxe4 19. Qe3 Rc2 20. Bd4 Qa5 *
Position (FEN): 5rk1/p3bpp1/4pn1p/q3N3/b2Bn3/P3QN2/2r1BPPP/R4RK1 w - - 4 21
White to move.
Themes:  Middlegame  
Puzzle rating: 1681
Best move: Bd3