Karolyi: The Exchanges Queen Gambit grundlagen IM Frank Zeller ist dem

IM Frank Zeller ist dem Schachpublikum durch seine Bundesligaeinsätze und durch seine zahlreichen Artikel in der Europa-Rochade oder der Zeitschrift Schach bekannt

Nf3 and other first moves – everything except 1

How to Save Points from Lost Positions

But you also have to use this for maths

Karolyi: The Exchanges Queen Gambit grundlagen IM Frank Zeller ist demThe Queen's Gambit is one of the oldest and most reliable openings which is mainly based on positional and structural understanding. The author gives a perfect guide about it and if somebody masters it, he will be able to use it in his entire chess career. This opening will never run out of fashion, its strategic and positional ideas will not be rejected by the strong computers.