Finally. A chess coach that knows you.

Learn chess with Chad.

Get started Get the iPhone app
Download on the App Store Use it on the Web
AI chess coaching for iPhone and the web

Three minutes to your first report

  1. 01

    Load your Chess.com games

    Point ChessMogg at your Chess.com username. It pulls your real games and maps the openings you actually play — no exporting, no setup.

  2. 02

    See where the points leak

    Your personalized opening report ranks your biggest performance gaps as White and Black — compared to how players at your level actually score from the same positions.

  3. 03

    Talk it through with Chad

    Ask why a line is costing you, what to play instead, and how to punish it. Chad answers from your exact position, in plain English — by chat or by voice.

Made for moments like these

Illustrative coaching conversations, not customer results. Your coaching depends on your games and the position you ask about.

  • Day one: your opening report

    You said
    Load my games.
    Chad
    Done. You lose 120 rating points in the London as Black. Let's fix the fork line first.

  • Why was f4 a blunder?

    You said
    Why is f4 a blunder here?
    Chad
    It ignores the h5 break. The knight comes in and your king never finds a home.

  • Picking the Scandinavian back up

    You said
    What should I play instead of 3…Qxd5?
    Chad
    Let’s check the move order on your board before comparing candidate moves.

  • Before the rematch

    You said
    I play this guy tomorrow. What does he get wrong?
    Chad
    Scouted. He collapses against the Caro-Kann — one win in his last nine. Push him there.

  • That endgame from last night

    You said
    I threw this rook ending.
    Chad
    Good. Let's make it stick — rook behind the passed pawn first. What were you worried about?

  • Club championship scouting

    You said
    What's my opponent's weakness?
    Chad
    He plays the Najdorf on autopilot, then blunders in time trouble. Take him off book.

An AI chess coach for your own games

ChessMogg is an AI chess coach and chess tutor built by LiNGUiD LLC. Connect a public Chess.com or Lichess username and Chad surveys hundreds of your games, finds the mistakes you repeat, and turns each one into a lesson with positions from your own play, checked with Stockfish.

On the web, follow a personal training path, talk with Chad by text or voice, and analyze any position. On iPhone, you also get personal puzzles built from your games. One subscription works on both.

AI chess coachHow Chad learns from your games and teaches the fix. Free game reviewEvery move of your Chess.com or Lichess game graded, with Chad. No sign-up. Lichess game reviewFree Lichess analysis, and how to go further. Get better at chessA weekly chess improvement plan built on your games. Chess openingsPlans, main lines and traps for eight top openings. Best AI chess coachChessMogg vs Chessvia, Aimchess, Noctie and more.

Frequently asked questions

ChessMogg starts from your real games instead of generic puzzles. Your opening report shows exactly which openings are quietly costing you rating points, compared to how players at your level actually score. Then you talk it through with Chad — why the line went wrong, what to play instead, and how to remember it.

You don't need a password or export — just your public Chess.com or Lichess username. You do need a ChessMogg account to get your report: type your username, then sign in (a quick email code, or Google/Apple) so ChessMogg and your saved progress follow you across devices.

Yes. Your report ranks your own performance gaps, so you start with whatever is actually costing you points — not a syllabus. Chad explains ideas in plain English, from your exact position, and will slow down or simplify whenever you ask.

ChessMogg uses your public Chess.com or Lichess games. Board analysis runs on your device; coaching reports and personal lessons also use our server-side services. Voice recordings are processed to provide transcription and coaching feedback. We retain only what's needed to improve your experience, in line with our Privacy Policy.

ChessMogg is free to download on iOS. On the web app, your first report and Chad both require a ChessMogg subscription — sign in with an existing ChessMogg account (iOS or web) to unlock it instantly, or subscribe right from the browser. ChessMogg then works across the iOS app and the web app.

Android is in the works. Until it ships, everything runs in your browser — sign in on the web and get the same report and coach on any device. Questions? Email [email protected].

Ready when you are.

Three minutes to your first report.

Download on the App Store Use it on the Web
Chad, your ChessMogg coach, waving