The new Opening Encyclopaedia 2025 - Your easy access to opening theory

3/19/2025 – Prepare for your next tournament with the new Opening Encyclopaedia 2025! Whether you want to build up a reliable and powerful opening repertoire or find new opening ideas for your existing repertoire, the Opening Encyclopaedia covers the entire opening theory in one product and is the ideal start for your opening training. Many new articles enrich the current theory with new or revisited ideas. The Encyclopaedia can help you learn openings quickly and give you a head start on your next opponent. Each article contains explanations and annotated games illustrating typical plans to deepen your understanding.