Opening Lab
Build your cloud-based opening repertoire. Master every variation with spaced repetition.
PRO UPGRADE
$6.99/mo
- Unlimited Opening Lines
- PGN Batch Import
- Ad-Free Experience
- Deep Engine Analysis
Recurring subscription. You will be billed monthly until you cancel.
Why cloud repertoires?
Memory Mastery
Our algorithm ensures you never forget your prep by testing you right before you're likely to forget.
Anywhere Access
Your prep is synced to Cloudflare D1. Study on your phone before a tournament or on your desktop at home.
Data-Driven Wins
Integrate with your actual game history to see where your prep fails in real matches.
Master Your Openings
The difference between a 1500 and a 2000 player is often just deep opening preparation.