ChessBase 17 and Opening Lexicon 2023

ChessBase is the personal chess database that has become the standard worldwide for everyone who enjoys chess and wants to continue playing successfully in the future. This applies to the world champion as well as to the club player or the chess friend next door.

Anyone who is serious about openings cannot ignore the Openings Dictionary. Whether you are a beginner or a grandmaster. The Openings Dictionary is by far the most comprehensive theoretical work for the sport of chess: over 1,396 (!) theory articles offer a huge wealth of ideas and high-quality analyses!