1. e4 e5 (1... c5 2. Nf3 Sicilian Mainline) (1... e6 2. d4 d5 3. e5 French Advance) 2. Nf3 Nc6 3. Bb5 Ruy Lopez Now, when you study, you click through the PGN and it shows you your own "theory." Create a separate PGN called Mistakes_and_Patterns.pgn . Copy-paste only the blunder moves from your main database into this file. Add a comment: “Date: Oct 27 – Blunder: Hanging queen on f3 – Pattern: Lack of king safety.”
Then, use a tool like (free on Lichess) or ChessBase Opening Key to see how your PGN’s move order matches master practice. Step 4: Advanced Techniques to Supercharge Your PGN Once you have the basics, it is time to engineer your PGN for rapid improvement. A. Build a Personal Opening Book You want a PGN that acts like a choose-your-own-adventure book. For your Opening_Repertoire.pgn : build up your chess pgn
Liked this guide? For more advanced PGN scripting tutorials and database automation, check out our follow-up article: “Advanced PGN Queries: How to Find Your Hidden Weaknesses in 5 Minutes.” Nf3 Sicilian Mainline) (1