Chess opening trainer
Master every opening. For free.
Learn opening theory with interactive move-by-move trainers, solve ELO-rated puzzles, and compete in weekly leagues.

Structured, not scattered
Every opening branches.
An opening isn't one line — it's a tree of decisions. We break each one into its real variations so you learn the structure, not a memorised sequence that collapses the moment your opponent deviates.
Everything you need to build a repertoire.
Four systems that reinforce each other — study, drill, compete, and keep showing up.
Interactive opening trainer
Every opening is broken into variations. Work through each one move by move — the trainer corrects you in real time so you build accurate muscle memory, not approximations.
ELO-rated tactics
Puzzles are pulled directly from the openings you're studying. Solve correctly on the first try to raise your rating. The difficulty adjusts to your level automatically.
Weekly leagues
Earn XP to place in Bronze, Silver, or Gold league. The table resets every Sunday — top ten players promote, bottom ten demote. Competitive without being punishing.
Streak and freeze system
A daily streak tracks your consistency. Missed a day? Spend 500 XP on a Streak Freeze to keep it intact. Streak milestones unlock bonus XP rewards.
Consistency compounds
The habit is the hard part. We handle it.
Daily
Streaks
Miss a day? Spend 500 XP on a Streak Freeze and keep it alive.
Weekly
Leagues
Bronze, Silver, Gold. Top ten promote every Sunday.
Adaptive
Puzzle rating
Every puzzle is ELO-rated and matched to your level.

Your next game starts before the first move.
Three openings free, forever. No card required.