Deep analytics for every Chess.com and Lichess game you've ever played. Find the patterns behind your losses and train what actually matters.
No card required to start · Works with Chess.com and Lichess
How we compare
ChessIQ doesn't replace Chess.com or Lichess. It sits on top of them and does the work their built-in dashboards don't.
Comparison reflects publicly documented features as of 2026. Things change - if we're wrong, tell us.
Pricing
Free forever for the basics. Premium for the deep work that actually moves your rating.
Get started, see the platform, sync your games.
Everything ChessIQ does. 7-day free trial. Cancel any time before day 8 and you won’t be charged.
Cancel any time from Settings.
What ChessIQ does
Chess.com-quality move classification at engine depth 20. Blunders, mistakes, brilliancies, and best moves annotated on a live board with an evaluation graph that tells the whole story.
Not just 'you blundered.' Identify the recurring patterns - missed forks, weak king safety, overextended pawns - that end your games. Track them across hundreds of games.
Win rate, accuracy, and preparation depth for every opening you play. See where you deviate from theory, how much it costs you, and which lines to study.
Personalized puzzles built from your actual blunders. Not random tactics - the exact patterns that end your games, curated and ranked by how badly you need them.
How it works
Sign up with your email and link your Chess.com or Lichess username. Takes 30 seconds.
Your last 30 days of games are queued automatically. Stockfish does the rest - no waiting.
Deep stats, game review with Stockfish, and personalized puzzle recommendations waiting for you.
Frequently asked
We only read public data through the official Chess.com and Lichess APIs. We never ask for your password and never write back to your account. Your analysis stays private to your ChessIQ account.
Background analysis runs continuously, so most games are reviewed within minutes of you signing up. While Stockfish chews through your history, you can already use the rest of the site - openings, puzzles, the analysis board.
No. ChessIQ runs entirely in your browser on desktop or mobile. No engine downloads, no extensions.
Chess.com analyzes one game at a time when you click review. We pre-analyze every game you've ever played at engine depth and surface patterns across hundreds of games - the recurring weaknesses, your worst openings, the puzzle types that keep beating you. We also work for your Lichess games.
Sign up free and analyze your games on the free tier. Premium unlocks unlimited game review, repertoire builder, blunder replay, and the deep insight surfaces. Cancel any time.
Yes. Account deletion in Settings removes your ChessIQ account and all cached game analysis. Your underlying Chess.com and Lichess accounts are unaffected because we never had write access to them.
Create an account and your games will be analyzed automatically - no waiting.
No card required to start