Boris Avrukh: Grandmaster Repertoire 1B - 1.d4,  The Queen's Gambit
Boris Avrukh: Grandmaster Repertoire 1B - 1.d4,  The Queen's Gambit
Preview: Boris Avrukh: Grandmaster Repertoire 1B - 1.d4,  The Queen's Gambit
Preview: Boris Avrukh: Grandmaster Repertoire 1B - 1.d4,  The Queen's Gambit