Opening library
Every official course grouped by family - Sicilian, semi-open, queen's pawn, Indian defences and more - each one trainable as White or as Black.
The library is arranged the way you already think about openings: the Sicilian systems together, the semi-open defences together, the queen's pawn games together. Named systems get their own entry rather than hiding inside a generic parent, so you can go straight to the Najdorf, the Sveshnikov, or the Taimanov instead of scrolling a family list.
Each card tells you how many lines the course contains before you commit to it, which matters - a five-line course is a different project from a twenty-line one.
The Fried Liver Attack is free to everyone, guests included. Sign in and the Vienna Opening, Jobava London System, and London System join it at no cost. The rest of the library needs a paid plan, and every course in it works in all four training modes.
The Endgames Vault runs on the same trainer, so the basic mates and the classic rook endings are drilled the same way: learn the technique, then convert it without help. The king-and-rook and king-and-queen mates are free to everyone.
Open the Endgames VaultThe Fried Liver Attack. It is short enough to finish in one sitting and it does not hide behind an account, so you can see how the whole loop works before deciding anything.
They are curated lines with the idea behind them explained - not an attempt to reproduce an entire engine tree. Broad, perfect, and unused loses to narrow, understood, and rehearsed.
No. New official courses are included in Plus and Unlimited as they ship, so the library you paid for keeps growing.