Opening Databases



Queen's Gambit Accepted - Complete Repertoire for Black

Queen's Gambit Accepted is one of the most fundamental and reliable openings. In the introduction to the current database, GM Hungaski writes: One of the reasons why I have been so attracted to this variation over the years (and why I believe I have been so successful with it) is due to the simplicity of Black's ideas and the practicality of the variations themselves. I began playing the Queen's Gambit Accepted nearly ten years ago. "I remember I was fed up with my bad results against 1.d4 and decided to stay away from long and complex theoretical discussions that were taking up a lot of my time and giving me little returns. Instead, I decided to choose an opening that would narrow down White's possibilities even if this meant accepting a slightly inferior (though very solid) position. To my surprise, I soon found out that White's road to advantage is not an easy one if there is one at all. In the analysis that follows, I hope to make a strong case in favour of this timeless opening based on the soundness of the arising positions and especially on the overall practicality of this opening".

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Play the Sicilian Four Knights

In this database, IM Robert Ris builds a complete repertoire for Black based on the Sicilian Four Knights. The starting position of this variation arises after 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 In this line, Black immediately puts pressure on the central squares e4 and d4. Additionally, he is planning to increase the pressure by playing ...Bb4 on the next move. This line is considered to be a very practical choice. Since Black is going for an active play at the very beginning, White's choice is limited. As a rule of thumb, by playing solid and natural moves, White does not get anything in this line. For a long period of time, the Sicilian Four Knights was considered to be slightly dubious. Nevertheless, the recent top-level and correspondence practice has proven otherwise. According to the analysis of IM Ris, currently, this variation is in a very good theoretical shape.

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Ambitious Repertoire against the Catalan

In his first database for Modern Chess, IM Luis Rodi provides an ambitious repertoire against the Catalan. The repertoire starts with 1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ (the authors also deals with the systems in which White delays Nf3 or c2-c4). The theoretical approach of IM Rodi is based on an in-depth analysis of positions with many pieces on the board and mutual chances. The author tends to favour aggressive ideas. Nevertheless, all his lines are completely justified from a positional point of view.

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Complete Repertoire for White after 1.d4 Nf6 2.c4 g6 3.g3 - Part 2

In the second part of his repertoire after 1.d4 Nf6 2.c4 g6 3.g3, GM Michael Roiz deals with the King's Indian Defence as well as with the systems based on Black's early ...c7-c5. True to his approach, the author usually suggests creative ideas which have been underestimated from a theoretical point of view. Each one of these lines, however, is based on solid positional foundations. Being classical and modern at the same time, this repertoire offers a very high practical value to the tournament player. The database consists of three parts - Typical Pawn Structures, Theoretical Section, and Test Section.

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Aggressive Repertoire against the French Defence - Part 1

The system with 3.Nc3 is the most ambitious weapon against the French Defence. The former World Champion GM Ruslan Ponomariov is playing this line almost exclusively and has tremendous experience with it. We are pleased to publish his first database for Modern Chess in which he analyzes two of the most popular replies for Black - the moves 3...dxe4 (Rubinstein Variation) and 3...Nf6 (Classical Variation). In the second part of his Anti-French series, he will provide a repertoire against Black's other options on move 3. The author provides a repertoire based on his own games and experience. His accent was to explain all tactical and strategical ideas and also to reveal the secrets of the high-level preparation and the modern theory. Below you will find how the author describes his database.

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Play the Leningrad Bird

What should we expect from the Leningrad Bird? Does it offer White an advantage? Is White's extra tempo with respect to the Dutch essential? First of all, we should expect a long strategic struggle, with many original positions and structures, which the computer does not always understand from the beginning. Quite typically, the engines' scepticism vanishes gradually. This makes the opponents' preparation quite difficult. It is right to say that in the complex middlegame the better strategy is likely to win, but we should also take into account that many interesting dynamic or tactical moments can arise.

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The Modern Makagonov - Complete Repertoire against King's Indian Defence

The modern way of fighting King's Indian Defense involves a little move h2-h3. Its idea is not just to protect g4-square from ...Ng4 and ...Bg4 sorties, but also to prepare ambitious g2-g4 expansion. This can be a very effective prophylactic measure against Black's typical kingside play, as well as a springboard to White's kingside attack(!) - as discovered by the Soviet Grandmaster Vladimir Makogonov, after whom this whole system was named. White has traditionally used a combination of Ng1-f3 and h2-h3 on moves 5 and 6 to achieve this setup, which was investigated by Grandmaster Mihail Marin in another Modern chess database.

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Complete Repertoire for White Against Petroff Defence

The Petroff has always been one of the most annoying openings for the White player. In this database, GM Colovic suggests the most aggressive way to meet it - 5.Nc3. The author analyzes all possibilities for Black but also offers different moves and plans for White to seize the initiative. The repertoire contains novelties and new concepts, but also all typical tactical and strategical ideas are very clearly explained.

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Complete Repertoire for White after 1.d4 Nf6 2.c4 g6 3.g3

GM Mihail Roiz starts a very ambitious project. In two databases, he will provide a complete White’s repertoire after the moves 1.d4 Nf6 2.c4 g6 3.g3. The fianchetto variation against King's Indian Defence and Grunfeld is very popular at all levels. It is considered to be the safest way to play with White. Loyal to his style, GM Roiz builds a repertoire which is not based on the most popular continuations. He provides a variety of new ideas in many important positions. Furthermore, his work brings new life to old forgotten lines. The first database is dedicated to the Grunfeld Defence. The database consists of 12 theoretical chapters and 15 test positions.

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Anti-Sicilian - 2.Nf3 d6 3.d4 cxd4 4.Qxd4

In his first opening database for Modern Chess, the Indian GM Sundar Shyam suggests a very interesting antidote to the Sicilian. After 1.e4 c5 2.Nf3 d6 3.d4 cxd4, he goes for 4.Qxd4!? Of course, at first sight, this move seems a little bit strange. White starts playing with the queen as early as move 4. It turns out, however, that Black doesn't have an efficient way to make use of this concession. Moreover, with his last move, White creates the positional threat of c2-c4, obtaining the so-called Maroczy Bind or the Hedgehog.

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