Chess Openings - ChessAtlas

Stop forgetting your chess openings. ChessAtlas helps you build an opening repertoire, train it with spaced repetition, and catch every move where your real games drift from your prep.

An opening only works if you remember it. ChessAtlas turns every line into a review card and schedules it at the perfect moment, so your preparation actually sticks over the board.

BUILD YOUR REPERTOIRE
- Create your own opening lines move by move
- Fork ready-made courses from a curated library
- Organize by opening, color and difficulty

TRAIN WITH SPACED REPETITION
- Powered by FSRS, the modern spaced-repetition algorithm
- Every variation becomes a flashcard with its own review schedule
- Easy lines wait longer, shaky ones come back sooner
- Practice on a real board with instant feedback

IMPORT YOUR REAL GAMES
- Pull your games straight from Lichess and Chess.com
- See exactly where you left your preparation
- Turn every mistake into a drill

FIND YOUR DEVIATIONS
- Automatic detection of where you strayed from your repertoire
- Drill those exact positions until the right move is automatic
- Close the gap between what you studied and what you play

WHY CHESSATLAS
- Built around memory, not just move lists
- Curated courses for every major opening, or roll your own
- Sync your progress across devices

Your opening prep is only as good as what you remember. Train it with ChessAtlas and walk into every game ready.

Train your mind to remember every line.