How it works
Pick an opening
Browse 38 popular chess openings sorted by ECO code. Filter by colour (White/Black) or difficulty level to find the right fit for your repertoire.
Choose a line
Each opening contains multiple lines - the most important variations you need to know. Read the description, study the moves, and understand the key ideas.
Practice move by move
The interactive board challenges you to play each move from memory. Get instant feedback, hints when stuck, and watch your streak grow as you go perfect.
Track your progress
Set streak goals and aim for perfection. Your practice session data stays in your browser - no account needed, no data ever leaves your machine.
Why learn openings this way?
Reading a book or watching a video feels productive. But nodding along is not the same as knowing. You need to play the moves yourself.
- Active recall - the trainer makes you play each move from memory before it lets you continue. This builds real retention, not just familiarity.
- 38 openings, 215 lines - every major system is covered with curated variations. No fluff, just the lines you actually need.
- Context you keep - each opening explains why it works, how it got its name, who played it, and what the pawn structure means. You learn the story behind the moves.
- Zero friction - no sign-up, no paywall, no data collection. Your progress lives in your browser. Close the tab and come back later. It is still there.
Featured openings
Not sure where to start? These openings are great entry points:
Italian Game
beginnerThe perfect first opening. Clear classical principles, natural development, and immediate tactical threats. The Italian Game teaches you everything you need to know about sound opening play.
Sicilian Defense
intermediateThe most popular response to 1.e4 at every level. Asymmetrical, rich in tactics, and a must-have in any Black repertoire. Start with the Classical or Dragon variations.
Queen's Gambit
beginnerOne of the oldest and most respected openings in chess. The Queen's Gambit teaches positional play, pawn structures, and long-term planning. Made famous by the Netflix series.
King's Indian Defense
intermediateA hypermodern classic where Black allows White a big centre only to counterattack it later. Dynamic, aggressive, and a favourite of world champions like Fischer and Kasparov.
Orangutan Opening
Unorthodox queenside expansion
An offbeat opening starting with 1.b4. White immediately stakes a claim on the queenside, avoiding mainstream theory and leading t…
Réti Opening
Hypermodern central control
White develops the knight to f3 and fianchettoes to control the centre from afar. Named after Richard Réti, a pioneer of the hyper…
English Opening
Flexible flank opening
White opens with 1.c4, controlling d5 from the flank. The English is one of the most flexible openings - it often transposes to …
Trompowsky Attack
Early Bg5 sidesteps the main lines
White plays 2.Bg5 immediately, avoiding the vast theory of 1.d4 Nf6 2.c4 and 2.Nf3. An independent system that puts early pressure…
Budapest Gambit
Surprise gambit against 1.d4 2.c4
After 1.d4 Nf6 2.c4 e5, Black immediately sacrifices a pawn to gain active piece play. A dangerous weapon at club level that takes…
Benko Gambit
Queenside pressure for a pawn
Black sacrifices the b5 pawn for long-term queenside pressure and open files. One of the most strategically rich gambits - Black…
Dutch Defense
Fight for the kingside from move one
Black answers 1.d4 with 1...f5, immediately staking a claim on the kingside. An ambitious and combative choice that leads to unbal…
Scandinavian Defense
Immediate central challenge
Black immediately challenges the e4 pawn with 1...d5. After 2.exd5 Black can recapture with the queen or the knight. One of the ol…
Alekhine's Defense
Provoke and undermine the White centre
Black boldly develops the knight to f6 on move one, inviting White to chase it with pawns. A provocative hypermodern defense that …
Pirc / Modern Defense
Hypermodern provocation from Black
Black allows White to build a big centre with d4 and e4, then undermines it from the flanks. The Pirc (with …Nf6) and Modern (with…
Caro-Kann Defense
Solid and resilient
Black answers 1.e4 with 1...c6, preparing ...d5. The Caro-Kann is one of the soundest defenses - Black gets a solid structure wi…
Sicilian Defense
The sharpest reply to 1.e4
The most popular response to 1.e4 at every level. Black fights for the center asymmetrically with 1...c5, leading to unbalanced po…
French Defense
Solid and counterattacking
Black answers 1.e4 with 1...e6, preparing ...d5. The French leads to closed, strategic battles with clear plans for both sides. Bl…
Bongcloud Attack
The king leads from the front
After 1.e4 e5, White advances the king to e2 on move two, voluntarily forfeiting castling rights. A beloved meme opening famously …
Danish Gambit
Two pawns for rapid development
White sacrifices two pawns to get two bishops bearing down on the kingside. A romantic 19th-century gambit that still catches unpr…
Bishop's Opening
An aggressive flank development of the king's bishop
The Bishop's Opening is one of the oldest openings in chess, dating back to the 16th century. By developing the bishop to c4 b…
Vienna Game
Flexible development with Nc3
White develops the knight to c3 on move two, preparing f4 or Bc4. The Vienna avoids the heavily analysed Ruy Lopez while keeping g…
King's Gambit
The original attacking opening
White sacrifices the f-pawn on move 2 to gain rapid development and a strong centre. One of the oldest and most romantic openings …
Philidor Defense
Solid development with ...d6
One of the oldest recorded chess openings. Black defends the e5 pawn with ...d6 instead of ...Nc6, keeping a solid but slightly pa…
Petrov's Defense
Solid symmetry after 1.e4 e5
Instead of defending e5, Black immediately counterattacks with 2...Nf6. A solid and drawish defense used by players who want relia…
Scotch Game
Active central play from move 3
White immediately strikes in the centre with 3.d4, opening the position early. The Scotch avoids the deep theory of the Ruy Lopez …
Halloween Gambit
A knight for two central pawns
White sacrifices a knight on move four for two central pawns and a scary space advantage. An objectively dubious but terrifyingly …
Italian Game
Classical development toward the center
One of the oldest recorded chess openings. White develops the bishop to c4, targeting the vulnerable f7 pawn and fighting for cent…
Evans Gambit
Sacrifice for initiative
A sharp and romantic gambit: after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5, White offers a pawn with 4.b4 to gain time and open lines. The Eva…
Two Knights Defense
Develop before defending
A combative response to the Italian Game: instead of playing 3...Bc5 (Giuoco Piano), Black develops the knight to f6, immediately …
Ruy Lopez
The Spanish Inquisition
One of the most enduring openings in chess. White attacks the Nc6 with 3.Bb5, putting indirect pressure on the e5 pawn. Played at …
Jobava London
London with a twist
A creative London variation developed by Georgian GM Baadur Jobava - Nc3 replaces Nf3, creating immediate pressure and threats. …
London System
Solid and easy to learn
White develops the bishop to f4 early and builds a rock-solid pawn structure. One of the most popular openings at all levels - l…
Colle System
A solid, system-based approach for White
The Colle System is a chess opening for White characterized by the moves d4, Nf3, e3, Bd3, and typically c3 and Nbd2. It was devel…
Queen's Gambit
Classical queen-side opening
White offers the c-pawn to gain central control. One of the most played and thoroughly analysed openings in chess history, appeari…
Slav Defense
Solid queen's pawn with ...c6
One of the most reliable responses to the Queen's Gambit. Black defends the d5 pawn with ...c6 while keeping the light-squared…
Grünfeld Defense
Let White build the centre, then destroy it
Black allows White to build a large pawn centre then attacks it with ...d5 and piece pressure. One of the sharpest and most dynami…
Catalan Opening
Queen's Gambit with a fianchetto
A sophisticated system where White combines the Queen's Gambit structure with a kingside fianchetto. The bishop on g2 exerts l…
Bogo-Indian Defense
Flexible check against d4
After 3.Nf3, Black plays 3...Bb4+ checking the white king. The Bogo-Indian is a flexible, solid alternative to the Nimzo-Indian th…
Queen's Indian Defense
Hypermodern control of e4
After 3.Nf3 (avoiding Nc3 which allows Nimzo-Indian), Black plays ...b6 and fianchettoes to control e4 from a distance. A sophisti…
Nimzo-Indian Defense
Controlling the centre with pieces
Black pins the Nc3 with ...Bb4, preventing e4 and fighting for the centre with pieces rather than pawns. Considered one of the mos…
King's Indian Defense
Dynamic counterattacking system
Black allows White to build a big pawn centre then attacks it with piece pressure and the ...e5 pawn break. One of the most comple…
The Cow 🐮
Anna Cramling's meme masterpiece
A creative system by WFM Anna Cramling where both knights take a scenic tour of the board: Ne2→Ng3 on the kingside and Nd2→Nb3 on …