Personalized PGNs can be uploaded to spaced-repetition trainers to test your memory.

I can provide a custom PGN template tailored exactly to your opening choices.

Only after completing your human analysis should you switch on Stockfish. Use the engine to catch tactical blind spots and blunder checks, adding these corrections as sub-variations. Pillar C: The Tactical and Endgame Scrapbook

Unlike pre-made books or video courses, a self-built PGN repertoire is tailored to your unique playing style. When you build your own files, you can add personal annotations, marking moments of confusion or brilliance. This process forces you to articulate the ideas behind the moves—such as "this move controls the center" or "this defends against a common trap"—which is far more effective for memorization than passive reading. 2. Strategic Construction: From Main Lines to Sidelines A robust PGN repertoire should be built systematically: