How it works

Where the opening lines come from, who checks them, and how playing one a few times turns into knowing it. No secrets: this is the whole method.

Every line you train is a sequence of moves that real players at your level actually play, checked by a chess engine so none of them is a mistake, and carried on until the position has settled or someone has won something. You play it yourself, from move one, and the app tells you what to do and why. After three clean runs from memory the line is yours, and the app brings it back for a quick review before you would forget it.

The lines start from rated blitz, rapid and classical games played on Lichess in July 2026, between players who averaged 1200 to 1499 on Lichess.

The first line of every course is free, with no account needed; as a visitor, your progress on it stays in your own browser. A free account keeps your progress and review schedule on any device and lets a parent see how a child is doing. A subscription unlocks every line of every course.