[May 30, 2016] Updated Opening Line from GM Trajko Nedev:
Gruenfeld Defense, Russian Variation

[Line 148 : 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3]

After the almost obligatory 5… dxc4 6. Qxc4, Black has an interesting gambit continuation in 6… Be6 7. Qb5+ Bd7 7. Qxb7 Nc6, that could be unpleasant to meet for the unprepared players of White.

In the main 6… O-O 7. e4 Black has a few promising possibilities:

Hungarian Variation 7… a6 is covered in our Line 149.

Smyslov Variation 7… Bg4 8. Be3 Nfd7 has generally lost its popularity in the last decades, but it can still be occasionally seen nowadays on top level.

Somewhat similar to the Smyslov Variation is 7… Nc6 8. Be2 Bg4, where Black pieces exert pressure on White’s pawn center.

Prins Variation 7… Na6, popularized by Kasparov, is the most frequently employed variation among those covered in Line 148. White gets a passed pawn after 8. Be2 c5 9. d5 e6 10. O-O exd5 11. exd5, and Black usually continues with 11… Bf5, followed by Re8 and Ne4, with sufficient counterplay.

[Diagram: Black to Move] R. Wojtaszek – J. Tomczak, Wroclaw 2013. White is a pawn up and it seems that his position is solid, but Black has a way to get a lasting initiative!

Click here to see the line in our viewer…

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