NEW: Opening Encyclopaedia 2026: Unlock the World of Chess Theory

YOUR CONVENIENT ACCESS TO OPENING THEORY

Be superbly prepared for any game with the new Opening Encyclopaedia 2026! Whether your goal is to build a reliable and potent opening repertoire or to discover fresh ideas for an existing one, this encyclopaedia covers the entirety of opening theory in a single product, serving as the perfect starting point for your training.

Introducing the latest Opening Encyclopaedia

Grandmaster Dorian Rogozenco: "The Opening Encyclopaedia is the best product available in the field of opening theory"

"The Opening Encyclopaedia provides a comprehensive and unparalleled overview of opening theory. Through numerous videos and theoretical articles, highly qualified trainers analyze and elucidate various opening variations, presenting them in a compact and easy-to-learn format. Literally everyone, from beginners to Grandmasters, can find a wealth of ideas to expand their opening repertoire. Whether you aim to surprise your opponents with unexpected moves from the very start of the game, delve into a complex theoretical variation, or grasp the latest developments in modern chess theory – the Opening Encyclopaedia equips you with everything you need. It is my firm conviction that the Opening Encyclopaedia is the premier product in opening theory, significantly enhancing your knowledge and helping you become considerably stronger in practice."

Many new articles enrich current theory with novel or re-examined ideas. The Encyclopaedia facilitates rapid learning of openings and gives you a significant advantage over your next opponent. Each article includes clear explanations and annotated games, illustrating typical plans to deepen your strategic understanding.

In 100 videos, renowned masters share their opening expertise – for instance, Felix Blohberger on the King's Indian 5.Nf3 0–0 6.Be2 Na6, a solid yet ambitious sideline.

The Opening Encyclopaedia offers swift access to all openings. Openings are neatly sorted by name and ECO code via a user-friendly menu, ensuring quick and easy navigation to your preferred variations.

The "Opening Tutorials" section provides a concise yet thorough overview of all established openings, assisting every chess player in selecting the most suitable opening tailored to their personal style.

A well-organized tutorial section for your favourite openings

The 2026 Encyclopaedia features 100 high-quality opening videos from our esteemed ChessBase authors. Daniel King, Dorian Rogozenco, Rustam Kasimdzhanov, Mihail Marin, Ivan Sokolov, Adrian Mikhalchishin, Leon Mendonca, Jan Werle, Luis Engel, Rainer Knaak, Robert Ris, Felix Blohberger, and many other grandmasters present fresh opening ideas with clarity and vividness. The number of articles in the Opening Encyclopaedia is continually expanding, now totaling 1,586, and the included database contains all games from every opening article.

Another key highlight: Grandmaster Dorian Rogozenco analyzes opening trends in world-class chess. You can look forward to a total of 9 videos covering the French Defense, Sicilian Defense, Najdorf Variation, Ruy Lopez, Italian Game, Petroff Defense, English Opening, and Queen’s Gambit Declined, spanning from 2025 to spring 2026.

As always, GM Dorian Rogozenco presents the newest opening trends

All these features combine to make the new Opening Encyclopaedia 2026 an indispensable reference tool for every tournament player.

• 1,586 specialized theoretical databases – analyses with annotated games & insights from Grandmasters
• Over 40,000 illustrative games
• 8,200 opening surveys, with 300 new or updated entries
• 100 opening videos. Total duration: over 35 hours
• Grandmaster Lectures: Dorian Rogozenco: The Latest Trends (9 Videos)