Master voices

Stjepan's Tomic's advice for chess learning (https://www.youtube.com/watch?v=ERji3r2-Zso) claims the best way to improve at chess is analyse annotated master games (with the annotations removed) like this:

• make your own move
• compare with the move made by the player
• figure out why they are different
• create your own notes about your thoughts
• at the end, compare with the original annotations and see if you understood what the player meant

This is "like having a 2700+ coach".

This could be turned into a tool, as well. Something that, when a move is made, shows the annotations from a curated database) like voices from the masters. Something like "In your position, I played XX. My thoughts were..."

Of course, finding such a database might be impossible.

No files, tests, or entry points are named. Start by reviewing how lichessTools adds browser-extension features, then assess whether a curated annotated-game database can support the proposed move-by-move “master voices” workflow; the issue does not define a concrete completion test.