Import an existing repertoire
Already have a repertoire somewhere else – a Lichess study, a course from another opening trainer, a file on disk? If it can be exported as PGN, it can be trained here. This guide imports one White and one Black repertoire into empty courses and ends with everything queued for spaced repetition.
Tip
Every image in this guide is a real product screenshot – only the repertoire shown is mocked. Click any image to enlarge.
1 · Start on the Courses page
A repertoire lives in Courses: one or more courses per color, all courses of a color merging into the repertoire that training drills. A new account starts with an empty White and Black course – 0 positions each – which is exactly what you want to import into.
Open the White course and choose Add lines. Everything after this is the same dialog, whatever your PGN came from.
Prefer one course per source – New course lets you name it (e.g. Anti-Sicilian) before adding lines, so you can retire or re-import it later without touching the rest.
2 · Paste it, or upload the file
Two ways in, and they are equivalent. Paste PGN takes the text straight from your clipboard – handy for a Lichess study chapter, where the PGN is one click away. Upload file takes a .pgn from disk, by Choose file or by dropping it on the box.
Either way the PGN is read as you go and summarized underneath: here, 405 positions – all new to learn. That count is the moves you would play – your opponent’s replies are the branches between them, not cards. Every variation comes across, along with any arrows and square highlights the PGN carries. Headers are optional: the course you are adding to already decides the color.
If the summary reads Couldn’t read this PGN, the usual cause is a file holding more than one game – a whole-study export, or a downloaded games collection. Import those one game at a time.
Adding to a course you have already filled is safe: moves you own are recognized and counted separately from the new ones, so re-importing an updated study only adds what changed.
3 · Already know these lines? Skip teaching
By default every imported move is new, and training starts by teaching it: the move is shown to you once, then immediately tested from memory. That is right for lines you are meeting for the first time.
It is wasted effort for a repertoire you have already drilled elsewhere. Tick I already know these lines – skip teaching before Add and the imported moves skip the teach and recall steps and become due to drill right away – spaced repetition simply starts measuring what you actually remember, and re-teaches only what you miss.
Forgot to tick it? The same thing is available later from the course’s More actions menu as Skip teaching.
4 · Do the same for Black
Repeat the whole step on the Black course: Add lines, paste or upload that repertoire’s PGN, skip teaching if you know it, Add. Color is never guessed from the file – the course you add to decides it. If a PGN’s shape disagrees with the course (your side branching more than your opponent’s, which is what the opposite repertoire looks like), the dialog warns you before anything is added.
Both courses now carry their lines: 405 positions for White, 240 positions for Black. Because teaching was skipped, every one of them is already due – 405 due and 240 due – and each course has its own Train button if you would rather drill one color at a time.
5 · Everything is queued to drill
Open Training and the badges tell you where the import landed: LEARNING 645 – every position from both courses, waiting to be drilled now rather than taught. Nothing else to set up; the queue is your repertoire.
From here the normal loop takes over. Each move you recall cleanly graduates and comes back at a widening interval; each one you miss stays close. Whatever you genuinely knew when you imported settles quickly – the gaps are what you end up spending time on.
