Understand the Hedgehog

Promo Packages

English Opening - Complete Package

This package of 3 databases provides a complete repertoire for White after both 1.c4 e5 and 1.c4 c5. Since the suggested repertoire is mainly based on understanding, you can use it as a lifetime weapon. Each database includes typical positions, theory, and test section.

Slav Repertoire for Black - Complete Package

This package provides you with a complete Slav Repertoire for Black. True to his style, IM Quintillano dives into the most topical and complex theoretical lines. After studying the material, you will enjoy a lifetime weapon against 1.d4.

French Defence with GM Mihail Marin - Complete Package

This package was created thanks to the partnership between Modern Chess and iChess. The bundle consists of 3 PGN databases by Modern Chess and 1 video database by iChess. These four databases provide you with everything needed to have the French Defence as your lifetime opening choice.

1.e4 c5 2.Nf3 d6 - Full Package

This package consists of 4 databases which provide a complete repertoire for Black based on 1.e4 c5 2.Nf3 d6.

Lifetime Weapons against the Fianchetto Systems

Every 1.d4 player should find a reliable solution to the systems in which Black develops his bishop to g7. This package provides you with a reliable and lifetime repertoire against the following openings: King's Indian Defence, Grunfeld Defence, Modern Benoni Defence, and Benko Gambit

Meet 1.d4 with 1...Nf6 followed by ...e7-e6

The openings based on 1...Nf6 followed by ...e7-e6 are probably the most classical way to meet 1.d4. Black goes for a quick development while keeping good control of the control of the centre. When you study classical openings, together with the related pawn structures, you also improve your chess understanding.

Weapons for White after 1.d4 d5

After studying these 6 databases you will no longer fear 1...d5 in response to 1.d4. In all the databases, before the theoretical part, the authors provide an extensive coverage of the typical pawn structures.

Middlegame Databases

These six databases feature some of the most important components of the middlegame play. All the databases include instructive model games which are divided by topic and interactive test positions. This package will help you a lot to improve your practical play.

Endgame Databases

The best way to study endgames is to study the games of endgame experts. The Swedish grandmaster Ulf Andersson and the World Champion Magnus Carlsen are the perfect models.

Chess Classics - Complete Package

Learning chess classics is essential for the development of every chess player. In our Classics databases, we present the most instructive moments in the games of classical players. In each database, the games are divided into topics. Additionally, you can solve a variety of test positions.