Chess Opening Library — 52 Courses

Learn chess openings move by move with explanations for every move, then drill them with spaced repetition until they're automatic. Courses for White and Black, engine-checked against Stockfish.

Caro-Kann Defense — B10-B19, for black, 7 chapters · 72 lines
Sicilian Dragon — B70-B79, for black, 4 chapters · 62 lines
King's Indian Defense — E60-E99, for black, 9 chapters · 49 lines
Grünfeld Defense — D80-D97, for black, 6 chapters · 47 lines
London System — D02, for white, 6 chapters · 32 lines
Italian Game — C50-C54, for white, 7 chapters · 56 lines
Alapin Anti-Sicilian — B22, for white, 8 chapters · 46 lines
Closed Sicilian — B23-B26, for white, 7 chapters · 28 lines
1.e4 vs the Rest — B01-C15, for white, 23 chapters · 274 lines
The Ponziani — C44, for white, 6 chapters · 31 lines
Scandinavian Defense — B01, for black, 6 chapters · 46 lines
Philidor Defense — C41, for black, 8 chapters · 50 lines
Pirc Defense — B07-B09, for black, 8 chapters · 52 lines
The Fried Liver Attack — C57, for white, 4 chapters · 33 lines
Evans Gambit — C51-C52, for white, 4 chapters · 24 lines
Vienna Game — C25-C29, for white, 5 chapters · 30 lines
Smith-Morra Gambit — B21, for white, 7 chapters · 33 lines
Budapest Gambit — A51-A52, for black, 4 chapters · 20 lines
Stafford Gambit — C42, for black, 6 chapters · 30 lines
Englund Gambit — A40, for black, 3 chapters · 23 lines
Traxler Counterattack — C57, for black, 4 chapters · 21 lines
Danish Gambit — C21, for white, 5 chapters · 20 lines
Ruy Lopez — C60-C99, for white, 6 chapters · 66 lines
French Defense — C00-C19, for black, 6 chapters · 63 lines
Sicilian Najdorf — B90-B99, for black, 6 chapters · 63 lines
Queen's Gambit Declined — D30-D69, for black, 3 chapters · 49 lines
Nimzo-Indian Defense — E20-E59, for black, 4 chapters · 45 lines
Queen's Indian Defense — E12-E19, for black, 7 chapters · 46 lines
Scotch Game — C44-C45, for white, 7 chapters · 52 lines
English Opening — A10-A39, for white, 7 chapters · 47 lines
King's Gambit — C30-C39, for white, 7 chapters · 47 lines
Dutch Defense — A80-A99, for black, 6 chapters · 46 lines
Slav Defense — D10-D19, for black, 5 chapters · 54 lines
The Catalan — E01-E09, for white, 4 chapters · 47 lines
Answering the English — A20-A29, for black, 6 chapters · 28 lines
Answering the Réti — A04-A09, for black, 6 chapters · 27 lines
Immortal Attacking Games — Classics, for white, 3 chapters · 3 lines
Beating the London — D02, A45, for black, 6 chapters · 29 lines
Petroff Defense — C42-C43, for black, 4 chapters · 53 lines
Sicilian Sveshnikov — B33, for black, 4 chapters · 50 lines
Queen's Gambit Accepted — D20-D29, for black, 7 chapters · 46 lines
Sicilian Taimanov — B44-B49, for black, 5 chapters · 52 lines
Accelerated Dragon — B34-B39, for black, 7 chapters · 51 lines
The Open Sicilian — B56-B99, for white, 6 chapters · 56 lines
Rossolimo & Moscow — B30-B31, B51-B52, for white, 6 chapters · 29 lines
Sicilian Kan — B41-B43, for black, 7 chapters · 47 lines
Trompowsky Attack — A45, for white, 5 chapters · 27 lines
Benko Gambit — A57-A59, for black, 6 chapters · 46 lines
Modern Benoni — A60-A79, for black, 7 chapters · 47 lines
Semi-Slav Defense — D43-D49, for black, 5 chapters · 45 lines
Queen's Gambit — D06-D69, E00-E19, for white, 10 chapters · 60 lines
The Open Games — C20-C99, for black, 9 chapters · 62 lines