Opening Databases



Queen's Gambit Declined for Black - Part 1

The Tartakower System has the reputation of being one of the most complicated lines in Queen's Gambit Declined. By playing early ...b7-b6 followed by ...Bb7, Black solves his main problem in QGD positions - the development of the light-squared bishop. Since the arising positions are very dynamic, this is a perfect variation for ambitious players. The current database is dealing with the systems in which White plays Bg5. Before diving into the deep theory, GM Mihail Marin covers 6 structures you should know. Armed with this structural knowledge, the reader can easily understand the theory. The database contains 6 pawn structures, 18 theoretical lines and 30 interactive test positions.

Features:     Downloadable in PGN      Interactive tests

Complete Scotch Repertoire

The Scotch Game has recently gained popularity as many top-level players have used it frequently. One of the benefits of choosing this opening is that White is taking his opponent out from his comfort zone in Italian and Ruy Lopez. The Scotch becomes very popular when Gary Kasparov scored many important wins with this opening. Nowadays almost all top players tried it from time to time, but Nakamura and Nepomniachti played it regularly and very successfully. IM Ris is providing us with a complete repertoire for White which offers many new and unexplored ideas. The main tactical and strategical ideas are very well explained, but also many interesting novelties are revealed. The database contains 15 Theoretical Chapters and 15 Test Positions.

Features:     Downloadable in PGN      Interactive tests

Complete Spanish Repertoire for Black - The Breyer System

The Ruy Lopez remains one of the most popular chess openings, both at club level and among top players. According to many grandmasters, this is the most complex opening in chess. Almost all world champions played it with both colours. Studying this opening will not only provide you with a repertoire but will increase your general chess understanding. In his two-part series, the renowned theoretician GM Michael Roiz is providing us with a complete repertoire for Black against it. In the current database, the author builds a repertoire based on the Breyer Variation. Roiz explains all strategical and tactical subtleties and proposes many fresh and unexplored ideas.

Features:     Downloadable in PGN      Interactive tests

Complete Caro - Kann Repertoire for Black - Part 3

In the third part of his Caro-Kann trilogy, GM Firat covers the Panov Аttack, Exchange Variation and minor sidelines for White on moves 2 and 3. He remains true to his investigative approach, uncovering new ideas and reviving forgotten development systems in virtually every variation. He often seeks dynamic options, not shying away from material sacrifices to solve opening problems or even take over the initiative with Black early in the game. Some of his novelties will have an added surprise value, as the opponent has likely not analyzed them in depth, or at all. In more solid variations, he offers sound positional advice when necessary, such as which plans to follow, which pieces to exchange, and which move orders to go for and which to avoid.

Features:     Downloadable in PGN      Interactive tests

Complete Najdorf Repertoire for Black - Part 3

The third and final database covers some of the most dangerous and topical systems against the Najdorf as well as all the sidelines. You will find a complete repertoire against the following moves: 6.h3, 6.Be3, 6.a3, 6.h4, 6.Bd3, 6.Nf3, 6.Qf3, 6.Qe2, and 6.Qd3. While 6.h3 and 6.Be3 are considered to be a mainstream theory, other moves are interesting sidelines. In the past few years, the approach in the opening has changed a little, and people are now looking to get a playable position with interesting possibilities instead of going for theoretical discussions and long forced lines (We may want to call it the "Magnus Carlsen" effect!). Due to this new approach, White players switched to less exploited fields in order to pose new problems for Black in the Najdorf. We will see that despite those lines not being concrete or so aggressive-looking as the ones analyzed in database 2, Black should be aware of them as to avoid getting into trouble. The database consists of 3 sections - Typical Pawn Structures, Theoretical Section and Test Section.

Features:     Downloadable in PGN      Interactive tests

Aggressive Repertoire against the Gruenfeld

Everyone, who is a 1.d4 player encountered a problem - what to do against the Gruenfeld Defence? It is a sound opening in which Black attacks White's center from the very beginning. In many lines, the theory goes so far that many games end in a forced draw without even a single own move from both players. In this database, GM Postny proves that the aggressive 5.h4 creates serious practical problems for Black. The author deals with many relatively unexplored position. In all the critical lines, he provides fresh ideas and novelties. After studying this database, you can play 5.h4 at any level.

Complete Caro-Kann Repertoire for Black

In the second part of his Caro - Kann trilogy, GM Burak Firat deals with the Advanced Variation (1.e4 c6 2.d4 d5 3.e5) Recently, this line became White's main weapon against the Caro - Kann. The main continuation 3...Bf5 is very complex and well analyzed. White has a variety of plans and Black needs to be well-prepared in all the lines. That's why in recent years the move 3...c5 becomes fashionable. Players like Mamedyarov, Anand, Grischuk, Nakamura try it with success. GM Firat decides to suggest 3...c5 as his main recommendation against the Advanced Variation and offers plenty of fresh and new ideas for Black.

Features:     Downloadable in PGN      Interactive tests

Petrosian System - Complete Repertoire against Queen's Indian Defence

In this database, GM Boris Avrukh is dealing with one of the most solid and respected weapons against Queen's Indian Defence - Petrosian System. The starting position of the variation arises after 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 In different time periods, Petrosian Variation was employed by many top players. For instance, nowadays, this is the way in which Mamedyarov meets the Queen's Indian Defence. Theoretically speaking, like in every decent opening, Black should be able to hold the balance. From a practical perspective, however, White's play is easier. In many positions, Black struggles to obtain counterplay. In his current work, Avrukh presents the modern way of playing the Petrosian System. He provides a number of decent novelties, as well as powerful positional concepts. Also, he explains all the thematic ideas in the variation. The database consists of 11 theoretical chapters and 20 test positions.

Features:     Downloadable in PGN      Interactive tests

Nimzo-Indian Defence - Complete Repertoire for Black

Nimzo-Indian Defense is the cornerstone of the three-part repertoire for Black against 1.d4 (the other two parts being the Catalan Opening and the Ragozin Defense). While there are several reasonable alternatives for Black to White's 3.Nf3 and 3.g3, it is clear that 3...Bb4 is Black's best answer against 3.Nc3. It leads to complex and strategically rich positions with plenty of room for creativity, despite being heavily theoretically explored over the years. This makes it one of the most popular opening systems for both colours.

Features:     Downloadable in PGN      Interactive tests

Play the Classical Sicilian - Complete Repertoire

In Part 1 of his Sicilian repertoire, IM Ogulcan Kanmazalp was dealing with the position arising after the moves 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5. Despite the fact that 6.Bg5 is by far the most critical continuation, White has decent alternatives. These alternatives are the topic of the current database. The author deals with 7 alternatives to the main move 6.Bg5 - 6.Nb3, 6.h3, 6.f4, 6.g3, 6.f3, 6.Be3, 6.Be2, and 6.Bc4. With the exception of 6.Bc4, these moves are more positional and less critical than 6.Bg5. In the arising positions, the knowledge of the typical plans and ideas is much more important than the memorization of concrete lines. The move 6.Bc4 is considerably sharper and requires a more concrete approach. As in the first database, IM Kanmazalp comes up with new ideas in all the lines. The survey consists of 12 theoretical chapters and 24 interactive test positions.

Features:     Downloadable in PGN      Interactive tests