(Šahovski Informator) since 1974, it categorizes thousands of opening variations into a concise coding system ranging from A00 to E99
Enciklopedija je podeljena u pet tomova (A-E), gde svaki tom pokriva specifične grupe otvaranja: Encyclopaedia Of Chess Openings, Volume B - Part 1 enciklopedija sahovskih otvaranja pdf
Semi-Open games other than the French Defense (most notably the Sicilian Defense and Caro-Kann). Volume C (C00–C99): Open Games (1. e4 e5) and the French Defense. Volume D (D00–D99): Closed Games (1. d4 d5) and the Grünfeld Defense. Volume E (E00–E99): (Šahovski Informator) since 1974