Koneru - Arabidze | Black's active plan in Queen's gambit declined

In the last round of women's blitz championship favorite Koneru played georgian GM Arabidze. Black player equalised with uncommon maneuver nd7-f8-e6 before castling. I also liked the move b5 which normally players hesitate to do, but in that position it gained black additional space and it appeared tat White got outplayed in the opening.
Koneru, Humpy - Arabidze, Meri
Women's World Blitz Championship 2019 round 17
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 Nbd7 8. Qc2 Nf8 9. Nge2 Ne6 10. Bh4 g6 11. f3 O-O 12. O-O b5 13. Rad1 Bb7 14. h3 Rc8 15. Kh1 a6 16. Qb1 Nh5 17. Bf2 c5 18. dxc5 Bxc5 19. Bc2 Qb6 20. Nd4 Nxd4 21. exd4 Bd6 22. Bb3 Bb8 23. Ne2 Qd6 24. g3 Rfe8 25. Qd3 Qe6 26. Ng1 Bxg3 27. Rde1 Qd7 28. Qd2 Qd6 29. Qg5 Rxe1 30. Bxe1 Re8 31. Bd2 f6 32. Qh6 Bh4 33. Bc1 Ng3+ 34. Kg2 Nxf1 35. Qxh4 Ne3+ 36. Kh1 Nf5 37. Qf2 Qb4 38. Bd2 Qxd4 39. Qg2 Qe5 40. Qf2 Ng3+ 41. Kg2 Ne2 42. f4 Qe4+ 43. Nf3 Nxf4+ 44. Bxf4 Qxf4 45. Qc2 Qe4 46. Qc7 Qe2+ 47. Kg3 Re7 48. Qd6 Kg7 49. h4 Qe6 50. Qf4 Qf5 51. Qd6 Qe6 52. Qf4 Qe3 53. Qd6 d4 54. Bd5 Bxd5 55. Qxd5 Qe4 56. Qd6 d3 57. h5 gxh5 58. Kf2 Qe2+ 59. Kg3 Qe6 60. Qxd3 Qg4+ 61. Kf2 h4 62. Qd8 Qg3+ 0-1

#humpykoneru #koneru #mariarabidze

Playing 2...e6 releases Black's dark-squared bishop, while obstructing his light-squared bishop. By declining White's temporary pawn sacrifice, Black erects a solid position; the pawns on d5 and e6 give Black a foothold in the centre. The Queen's Gambit Declined has the reputation of being one of Black's most reliable defenses to 1.d4. In this situation, White will try to exploit the passivity of Black's light-squared bishop, and Black will try to release it, trade it, or prove that, while passive, the bishop has a useful defensive role.

An eventual ...dxc4 by Black will surrender the centre to White, and Black will usually not do this unless he can extract a concession, usually in the form of gaining a tempo, by capturing on c4 only after White has played Bd3 first. In the Orthodox Line, the fight for the tempo revolves around White's efforts to play all other useful developing moves prior to playing Bd3.
Exchange Variation: 4.cxd5 exd5
(1.d4 d5 2.c4 e6 3.Nc3 Nf6) 4. cxd5 exd5 5. Bg5 c6 6. Qc2 and White has a pawn majority in the centre, Black has a pawn majority on the queenside. This pawn structure gives White the opportunity to either advance his pawns in the centre by means of Nge2, f2–f3, followed by e2–e4, or play for a minority attack by means of the plan Rb1, followed by b2–b4–b5, then bxc6 in order to create a weak pawn at c6. While Black can play ...cxb5, or recapture on c6 with a piece, each of these possibilities are even less desirable than the backward pawn in the open file. For Black, exchanging at d5 has released his light-squared bishop and opened the e-file, giving him the use of e4 as a springboard for central and kingside play. While chances are balanced, Black is usually more or less forced to use his superior activity to launch a piece attack on White's king, as the long-term chances in the QGD Exchange structure favour White. The following games are model games for White:
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