Boris Avrukh - 1.d4 Kings Indian & Grunfeld

Contents

(the numbers are page numbers in the print edition)

Title Page

Preface 3

Key to symbols used & Bibliography 6

Grnfeld

1 Solid with ...c6 7

2 Dynamic Grnfeld 25

3 6... N b6 48

4 Main Line with 8...0-0 64

Kings Indian

5 Early ... B g4 Lines 81

6 6...c6 99

7 7... Q b6 & 7... Q a5 127

8 6... N c6 Sidelines and 7...e5 154

9 6... N c6 & 7... B f5 168

10 6... N c6 & ...a6/... R b8 184

11 6... N bd7 Sidelines 202

12 8...exd4 218

13 8...c6 240

14 9... Q a5 261

15 9... Q b6 279

Other Lines

16 Reluctant Benoni 298

17 Benko Attempt 323

Variation Index 331

Grandmaster Repertoire 2A

Kings Indian and Grnfeld

By

Boris Avrukh

Quality Chess

First edition 2018 by Quality Chess UK Ltd
Copyright 2018 Boris Avrukh

Grandmaster Repertoire 2A Kings Indian and Grnfeld

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Hardcover ISBN 978-1-78483-045-8

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Preface

I am extremely excited to release this third volume of my new series of 1.d4 repertoire books, which replaces the older Grandmaster Repertoire Volumes One and Two (henceforth abbreviated to GM 1 and GM 2 ). Volume 2A is mainly devoted to the challenge of taking on two of Blacks most popular and dynamic defences: the Grnfeld and the Kings Indian. The former takes up the first four chapters, with the latter comprising Chapters 5-15. The final two chapters continue the theme of Blacks kingside fianchetto, dealing with the closed Benoni followed by a tricky move order with an early ...c5.

For readers who liked my recommendations in GM 2 , I have good news: I decided to retain the Fianchetto System as my weapon of choice. However, there have been enormous changes within several variations, which should come as no surprise. Nearly eight years have passed since GM 2 was published, which is a tremendous length of time for modern chess theory. This is especially true for the many new ideas I presented in my previous work, many of which have been tested extensively. Some of my previous ideas succeeded in putting the lines in question out of business, while in other cases Black players managed to find reliable antidotes to my recommendations. After giving my repertoire a thorough overhaul, I am quite proud of both the modifications and the new ideas I have introduced in this book. Here is a brief glimpse at a few of the most important changes:

The Grnfeld

I decided new directions were needed against two of Blacks main options. Firstly, Chapter 1 deals with the rock-solid 3...c6 and 4...d5, when I will be recommending:

5. Q a4!?

White intends to exchange on d5 without allowing Black to recapture with the c6-pawn. Black has tried several replies but so far Whites results have been excellent. I have presented a lot of new ideas, many of which were discovered when I worked on this variation with Boris Gelfand some years ago.

The next three chapters deal with the structure arising after 4...d5 5.cxd5 N xd5 , which I call the Dynamic Grnfeld. After dealing thoroughly with the various sidelines, we will eventually work our way up to the big main line arising after 9... R e8 (variation E of Chapter 4). In GM 2 I offered 10. R e1, but a huge amount of practical testing and analysis has revealed more than one satisfactory solution for Black. Instead I am recommending 10. N h4!?, a recent trend which has yielded excellent results so far. Once again, I have presented a lot of original ideas and analysis to create fresh problems for Black.

The Kings Indian

Out of the many changes in this new volume, perhaps the most radical ones have come in the 6... N c6 variation. After 7.0-0 we reach the following position.

Firstly, 7...e5 has come into fashion as of late. I developed some nice ideas after 8.dxe5N xe5 9.b3 , which I was able to put to the test in a recent game against the American prodigy Awonder Liang; see Chapter 8 for more about this.

Against 7...a6 and 7... R b8, which are essentially the same concept, I have chosen 8.b3, taking Whites play in a completely different direction from GM 2 . The main point is to meet 7...a68.b3 R b8 with the surprising 9.d5 , which I believe offers White excellent prospects, as you will see in Chapter 10.

Other Lines

The final two chapters cover a couple of important sidelines. The Reluctant (closed) Benoni contains a lot of subtleties, and I have significantly improved upon my coverage from GM 2 . Finally, 3...c5 is a tricky move order which I completely overlooked in GM 2 . Chapter 17 shows an excellent solution for White, with an important novelty in the most critical line.

***

I know a lot of chess readers have been waiting for my latest ideas against the Grnfeld and Kings Indian Defences in particular, and I hope my new work will satisfy their expectations.

Boris Avrukh

Chicago, December 2017

Key to symbols used

Bibliography

Avrukh: Grandmaster Repertoire 2 1.d4 Volume Two , Quality Chess 2010

Avrukh: Grandmaster Repertoire 8 The Grnfeld Volume One , Quality Chess 2011

Bogdanov: Chess Explained: The Grnfeld , Gambit 2009

Bojkov: Modernized: The Kings Indian Defense , Metropolitan 2014

Bologan: Bologans Kings Indian , New In Chess 2017

Dembo: Play the Grnfeld , Everyman Chess 2007

Gallagher: Play the Kings Indian , Everyman Chess 2004

Golubev: Understanding the Kings Indian , Gambit 2006