London System
TacticsQueen raids, Greek Gift sacrifices, kingside mate nets, queen traps, and bishop invasions.
0 of 32 lessons completed
Lesson mode
Opening repertoires
Choose a course below. Each opening launches the interactive line trainer.
Beginner School
Chess from Zero · Coach-led · Voice + Quizzes
5Parts
20+Lessons
FreeAccess
FoundationArmyBattleTacticsPatterns
Start from the board and notation, learn every piece, then master checkmate patterns and opening principles.
Italian Opening
TacticsFrom lessons/italian.txt: owning the centre, queen advantage, exploiting d5 and h6.
0 of 28 lessons completed
Scandinavian Defense
Deep theoryFull Black repertoire vs 1.e4 — the main line plus your booked answer to every early White sideline.
0 of 243 lines mastered
Queen's Gambit
TacticsPawn grab trap, bishop hunt, Greek Gift mate, centre collapse, fork breakthrough, and more.
0 of 30 lines
Ruy Lopez
TacticsQueen traps, Greek Gift sacrifices, king hunts, Berlin wins, and a stunning Bxf7# finish.
0 of 36 lessons completed
Sicilian Accelerated Dragon
TacticsFrom sicilian defense.txt: Dragon traps, fork trap, poisoned bishop, Nd5 sacrifice, and more.
0 of 27 lessons completed
Colle System
TacticsFrom lessons/colle system.txt: classic d4 setup, central play, queen-side expansion, and tactical strikes.
0 of 34 lessons completed
Scotch Gambit
TacticsFrom lessons/Scotch Gambit.txt: queen lightning strikes, king hunts, Greek Gift, smothered mates, and more.
0 of 38 lessons completed
Deep Theory
Ruy Lopez
Deep theoryFull White repertoire starting 1.e4 e5 2.Nf3 Nc6 3.Bb5 — the main line plus your booked answer to every Black deviation.
0 of 251 lines
King's Indian Defense
Deep theoryFrom lessons: classical KID, fianchetto, f3 setup, four pawns, Bg5 punishes.
0 of 242 lines
Two Knights Defense
Deep theoryMain continuation, Znosko-Borovsky trap, Polerio, Fritz, Ulvestad, and Traxler counterattack lines.
0 of 271 lines
Petrov Defense
Deep theoryFrom lessons: main line, classical structure, fork ideas, and tactical traps.
0 of 234 lines
Scandinavian Defense
Deep theoryFrom lessons: Qa5, Qd8, modern Nf6, and tactical ideas.
0 of 256 lines
Englund Gambit
Deep theoryFrom lessons: Qe7 setup, Qb4+ pressure, traps, and tactical chaos.
0 of 289 lines
Traxler Counterattack
Deep theoryFrom lessons: sharp Two Knights counterplay with Bc5 after Ng5.
0 of 263 lines
Caro-Kann Defense
Deep theoryFrom lessons: classical, Karpov, Panov-Botvinnik, advance, exchange, fantasy, and more.
0 of 297 lines
Fried Liver Attack
Deep theoryKnight sacrifice on f7, king hunts, Lolli Attack, Traxler counter, Fritz, Ulvestad, and Polerio lines.
0 of 248 lines
French Defense
Deep theoryFrom lessons: main line, advance, Tarrasch, classical, exchange, traps.
0 of 278 lines
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Beginner School
Learn chess from the ground up — the board, every piece, check, tactics, and checkmate patterns. Coach-led steps with voice and quizzes.