Variation tree
The first move at each position is the main line.
Library
Your courses
Create, improve and publish opening courses.
Loading courses…
Course
Course details
How the course appears to learners.
Author
Repertoire editor
Play moves on the board, then explain what the learner should remember.
Select a piece or drag it to add a move.
Suggestions
Maia & Stockfish
Human-likelihood and objective chess analysis, kept deliberately separate.
Starting position
Human play
Maia suggestions
Run analysis to see likely human moves.
Objective
Stockfish 18
Run analysis to see the strongest continuations.
Whole-course coverage
Find likely opponent responses that are missing from the repertoire.
Writing
Spellcheck & explanations
British English suggestions run locally. Chess directives and notation are ignored.
Run the writing check when your explanations are ready.
Structure
Chapters
Drag a chapter divider, name the lesson and keep each one memorable.
Learner view
Preview the course
Play a chapter exactly as a learner would before publishing.
Make a move to reveal feedback. Preview attempts never affect learner scores.
Release
Quality checks
Blockers must be fixed. Warnings are yours to judge.
Course history
Versions & restore
Published versions are immutable. Restoring creates a new draft.
Loading history…