Playing 1.d4 The Queen's Gambit 2012-Verifying Schandorff

Repertoire Against the Semi-Slav
Schandorff proposes the Bg5 complex against the rock solid Semi-Slav in Playing 1.d4 vol2-Schandorff(Quality Chess 2012). In the analysis of

Hracek,Z (2628) - Elsness,F (2506)

18th European Teams Porto Carras GRE (1.12), 03.11.2011

Schandorff's proposes 15...Kb8 as a key defensive novelty which remains untested to TWIC 852.  I found a key improvement for black in the notes to black's 18th move.

Black to Play

18.Nc3

Now black played 18...Bb7 but 18..Nb8 manages to hold.

Hracek,Z (2628) - Elsness,F (2506)

Semi-Slav Anti-Moscow Gambit[D43]

18th European Teams Porto Carras GRE (1.12), 03.11.2011

Position 1
After 21...ed,white has a wide choice of captures. What do you suggest for white?

White to Play

21...ed

Noteboom(D31) Analysis-Verifying Schandorff

Here is a preliminary look at GM Schandorff's anti-Noteboom repertoire idea in Playing 1.d4 The Queen's Gambit 2nd Ed(Quality Chess 2012).

The first edition suggested the 8.Rb1 sideline but in the 2nd edition, Schandorff has presented a more positional idea in the main line-13.c5!?

I looked at Schandorff's proposed TN(21.d5!) and his other ideas. Now I'm happy I get the basics and this will have to do for now.

Lomineishvili,Maia (2401) - Melnikova,Yana (2171) [D31]
EU-ch (Women) 5th Dresden (2), 22.03.2004[Yip]
1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.e3 b5 7.Bd2 a5 8.axb5 Bxc3 9.Bxc3 cxb5 10.b3 Bb7 11.bxc4 b4 12.Bb2 Nf6 13.c5 The idea is to play Bb5-a4 to blockade the queenside passed pawns (Diagram) 

Position 1
Black has just played 18...Ne4 to extend the light square blockade idea to the center.
Q1-What do think of black's idea?
Q2-How should white react?

White to Play

Playing the Queen's Gambit 2nd Ed

Playing the Queen's Gambit
The second edition is out from Quality Chess.

QualityChess Playing 1.d4 The Queens Gambit.

The big question is what's the difference? More games have been added and the analysis strengthended.

	1st Ed	2nd Ed
Pages	248	320
Games	66	77

Breakdown by Chapter
10 new games have been added. The big difference is also in the line against the Noteboom(D31) where a more positional main line has been added while keeping the older 8.Rb1 recommendation.

Ch					Year	1st Ed	2nd Ed
1	QGD	Wojtaszek	Fressinet	Wijk aan Zee	2011		New
2	QGA	Aronian	Stevic	Plovdiv	2010		New
3	Slav	Topalov	Anand	Sofia(m/8)	2010		New
4	Semi-Slav	Nakamura	Smeets	Wijk aan Zee	2011		New
		Hansen,E	Yang,D	Lubock	2010		New
		Shyam	Siddharth	Visakhapatnam	2011		New
		Hracek	Elsness	Port Carass	2011		New
		Anand	Shirov	Wijk aan Zee	2011		New
8	Minor Lines	Shirov	Kaczmarek	Warsaw(rapid)	2008		New
		Lomineishvili	Melnikova	Dresden	2004		New