Chess - QGD Vienna variation (for black) - 5.Bg5 dxc4 6.a3

Описание: Lines from the video:

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "6.a3"]
[Black "?"]
[Result "*"]
[ECO "D39"]
[Annotator "MWP"]
[PlyCount "36"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 (4... dxc4 5. e4 (5. Bg5 Bb4) 5... Bb4
6. Bxc4 $1 Nxe4 7. O-O $44) 5. Bg5 dxc4 6. a3 Bxc3+ 7. bxc3 c5 8. e3 (8. Bxf6
Qxf6 9. e3 O-O 10. Bxc4 b6 11. O-O Bb7 12. Bd3 Nd7 $11) (8. Qa4+ Bd7 9. Qxc4
cxd4 10. cxd4 O-O 11. e3 (11. e4 h6 12. Bxf6 Qxf6 13. Bd3 Rc8 14. Qa2 Nc6 15.
Qb2 Be8 16. O-O Rd8 17. e5 Qf4 $11) 11... Qa5+ $5 12. Qb4 Qxb4+ 13. axb4 Nd5
14. b5 (14. Kd2 f6 15. Bf4 (15. Bh4 Nxb4 $15) 15... Nxf4 16. exf4 Nc6 17. b5 (
17. Bb5 $2 Rfd8 $17) 17... Ne7 18. Bc4 Rfd8 $11) 14... f6 15. Bf4 Nc3 16. Bd6
Rd8 17. b6 Nc6 18. bxa7 Nxa7 19. Bd3 Nab5 20. Kd2 Nxd6 21. Kxc3 Bc6 $11) (8. e4
Qa5 9. Bxf6 Qxc3+ 10. Nd2 gxf6 11. dxc5 Ke7 $15 {(with the idea Rd8)}) 8...
cxd4 9. exd4 (9. cxd4 Qa5+ 10. Qd2 c3 11. Qc2 Bd7 12. Ne5 $1 O-O 13. Bxf6 gxf6
14. Nc4 (14. Nxd7 Nxd7 15. Bd3 f5 $11) 14... Qd5 15. Qxc3 Nc6 $11) (9. Qxd4
Qxd4 10. cxd4 b5 11. Bxf6 gxf6 12. a4 {Soldat III 0.172 - Gibbon 2.57a,
Internet 2013} b4 13. Bxc4 Bb7 14. Ke2 Ke7 $11) (9. Bxf6 Qxf6 10. Qxd4 (10.
cxd4 O-O 11. Bxc4 Nc6 $11 {(with the idea b6,Bb7)}) 10... Nd7 11. Bxc4 O-O 12.
O-O {Gibbon 2.57a - Soldat III 0.172, Internet 2013} b6 13. a4 Qe7 14. a5 Bb7
$11) 9... Nbd7 10. Bxc4 Qc7 11. Qd3 (11. Qb3 O-O 12. O-O b6 $11) 11... O-O 12.
O-O b6 13. Rfe1 (13. Bh4 Bb7 14. Bg3 Qc8 15. Rac1 Bxf3 16. gxf3 a6 $11) 13...
Bb7 14. Ba2 Rfd8 {B. Lalith - R. Wojtaszek, Baku 2015} 15. Qe3 b5 16. Rac1 Rdc8
17. Bf4 Qa5 18. Bd6 Qb6 $10 *