Chess Opening Database
THE ATLAS
The world's first chess openings database where every move is explained. Learn the ideas, not just the moves.
Our Philosophy
Understanding Over Memorization
Traditional opening resources tell you what to play. We tell you why.
Please note that there is still some possibility of some explanations having minor mistakes or grammatical errors, which you can report to us.
Our Journey
Years in the Making
What began as an ambitious vision in 2020 has evolved into the world's first truly explained chess openings database. Every variation, every move, every strategic nuance—meticulously analyzed and articulated for players who demand more than just theory.