Master your openings

Build your repertoire, train with spaced repetition, and never lose in the opening again.

SM-2 Spaced Repetition
Lichess & Chess.com Import
Course Library
100% free to start

Italian Game

Giuoco Piano

Starting...

Starting position

Integrates with your favorite platforms

Free to start

No credit card

Secure & private

How It Works

Master your openings in 3 simple steps

Build Your Repertoire

Import your games or create your own lines. Organize by opening, color, and difficulty.

Train with SM-2

Practice your lines with spaced repetition. The algorithm optimizes your review schedule.

Track & Improve

Analyze your games, find deviations, and continuously strengthen your preparation.

Everything to improve in openings

Modern tools to learn and remember your opening lines.

Course Library

Access opening courses created by experts or create your own.

Spaced Repetition

Memorize efficiently with the SM-2 algorithm that optimizes your reviews.

Interactive Training

Practice your lines on the board with instant feedback.

Game Sync

Import your Lichess/Chess.com games and find your opening mistakes.

Frequently Asked Questions

Everything you need to know about ChessAtlas

Yes! Core features are completely free: build repertoires, train with spaced repetition, and import games from Lichess/Chess.com. Premium features are available for power users who want more.

Ready to never forget a line again?

Create a free account and start building your repertoire now.