Build Up Your Chess Pgn

Based on your request, it seems you are referring to the renowned Build Up Your Chess series by Grandmaster Artur Yusupov , which is often studied using (Portable Game Notation) files for practice.

Additional Resources

A solo PGN archive is good. A shared one is better. Export annotated PGNs to: build up your chess pgn

Tips and Tricks for Effective PGN Analysis

What Is a Chess PGN (And Why You Need to Build It)?

This extracts only games where you played against 2000+ rated players. Based on your request, it seems you are

Building a Chess PGN (Portable Game Notation) library is the best way to track your progress, build an opening repertoire, and archive your best games. PGN is a universal plain-text format Advanced players wanting deep engine analysis, opening tree

Build Up Your Chess PGN: From Random Games to a Repertoire That Wins