A repertoire, not a pile of PGNs.
Browse openings by family, color, and level. Add the lines you want, skip the rest.
Lines
Searchable

Build a repertoire, drill it on the board, and see what actually sticks.

Start from an opening catalog organized by family, color, and level.
Keep only the variations you plan to play, then turn them into a review queue.
Practice the move order in the same board-first context you need in games.
Review history, accuracy, and streaks show which lines are actually sticking.
Drill your lines on a real board — the same recall you'll need in a game, not a flashcard quiz.
Browse openings by family, color, and level. Add the lines you want, skip the rest.
Lines
Searchable

Accuracy, streaks, and session history show you which lines need more reps.
Recall
Recorded

Free gets you board-first practice with a focused queue plus three studies and five drills per day. Premium unlocks unlimited active lines, imports, and progress analytics for $8 a month.
Free
A clean way to start training exact lines without committing to a bigger queue.
$0
foreverChessEcho Premium
For players who want every saved line, import, and review trend in one place.
$8
a month