We have not had to wait long for a new contribution to the ultra-popular Gruenfeld. The readers have already become acquainted with GM Kiril Georgiev’s review of 4.Bg5 and its ensuing lines. What are the differences with the same bishop sally after 4.Nf3 Bg7?
The Moldavian FM Egor Lashkin is here to give explanations to these essential questions. Even more, the initial position can also occur in games that have started with 1.Nf3.
PGN Available Memory Booster Interactive Tests
We are pleased to present another fascinating opening survey by GM Davorin Kuljasevic - Play the Neo-Seirawan System against King's Indian Defence.
The starting position of the repertoire arises after 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Bd3
In the introduction to the database, the author writes, "At first, this seems like a mixup between the two different systems. Usually, we develop our bishop and knight either in the ''classical'' Be2-Nf3 or the ''Seirawan'' Bd3-Ne2 formation. By comparison, Bd3-Nf3 (which I decided to name the ''Neo-Seirawan'' variation) seems less principled because it allows Black to pin the knight with Bg4. However, things are not that simple for Black after this move, as we will see.
2h 36m PGN Available Memory Booster Interactive Tests
IM Marcin Sieciechowicz spent countless days on opening research and tons of computing power. He double-checked the variations to ensure you get the most accurate and up-to-date Nimzo-Indian Defense Repertoire.
Partner Course:

10h 3m PGN Available
The camp of GM Grigorov - 1.d4 Nf6 - Practical Repertoire against the Sidelines is already a digital product.
This product includes all the videos from the workshop as well as the PGN file related to the training sessions. Overall, the material consists of 7.5 hours of video and a PGN database which includes 71 files!
7h 20m PGN Available
The camp of GM Papaioannou - Queen's Gambit with ...h7-h6 - Universal Repertoire against 1.d4, 1.Nf3, and 1.c4 is already a digital product.
This product includes all the videos from the workshop as well as the PGN file related to the training sessions. Overall, the material consists of 7.5 hours of video and a PGN database which includes 79 files!
Sequence: Fight 1.d4 with Papaioannou »
7h 38m PGN Available
Finding a challenging variation against the Nimzo-Indian is one of the biggest issues for every 1.d4 player. The soundness of this opening often discourages White from playing 3.Nc3 after 1.d4 Nf6 2.c4 e6.
We are happy to announce that GM Cheparinov has come to your rescue! In his brand-new database, he provides a full repertoire for White based on 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3
5h 20m PGN Available Memory Booster Interactive Tests
The camp of GM Papaioannou - Understand the Modern Benoni is already a digital product.
This product includes all the videos from the workshop as well as the PGN file related to the training sessions. Overall, the material consists of 7.5 hours of video and a PGN database which includes 90 files!
Sequence: Fight 1.d4 with Papaioannou »
7h 22m PGN Available
The camp of GM Grigorov - Practical Nimzo-Indian Repertoire is already a digital product.
This product includes all the videos from the workshop as well as the PGN file related to the training sessions. Overall, the material consists of 7.5 hours of video and a PGN database which includes 74 files!
7h 50m PGN Available
We are happy to announce that GM Mihail Marin has completed one of his huge middlegame projects - Must-Know Structures for 1.d4 Players.
The second and final part consists of 40 extensively annotated games which are divided into 5 sections. Besides, you get access to a Video Version with a running time of 3 hours. You will find also 71 test positions.
Sequence: 1.d4 Pawn Structures »
2h 51m PGN Available Interactive Tests
The starting position of this database arises after 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7
True to his style, Cheparinov always looks for dynamic, challenging and relatively less explored variations. Therefore, the suggested repertoire is perfect for ambitious players who always play for a win with Black.
The database consists of 10 Theoretical Chapters, 10 Interactive Test Positions, a Memory Booster, and a Video Version (6h Video Running Time).
8h 22m PGN Available Memory Booster Interactive Tests