Use the PDF alongside a chess database (like Scid vs. PC or ChessBase). Study the ECO explanations first, then check engine updates for the sharpest modern lines.
Chess Informant now sells official digital versions. You can purchase the ECO e-books (including Volume B) through their website or apps like Chess Studio. These are searchable, hyperlinked, and updated. This is the gold standard.
Use the PDF alongside a chess database (like Scid vs. PC or ChessBase). Study the ECO explanations first, then check engine updates for the sharpest modern lines.
Chess Informant now sells official digital versions. You can purchase the ECO e-books (including Volume B) through their website or apps like Chess Studio. These are searchable, hyperlinked, and updated. This is the gold standard. encyclopedia of chess openings volume b pdf