Save 28% Unlock Unlimited €4.22 / $5.00 €5.90 / $6.99 €33.76 / $40.00 €47.20 / $55.92 4 months free Compare
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Your chess training hub

Get better at the games you already play.

Look over your games, clean up your blunders, and practise what matters — puzzles, a coach, and sparring when you want to dig in.

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Game source

No account needed — we only read public games.

Game Review

Your games, reviewed move by move.

Paste any PGN and get a full report in seconds — opening accuracy against the official courses, engine grades on every decision, and coach notes that say exactly where the line slipped.

Review a game

Library analysis

Unlock Ultracoach

Cyber Chameleon studies games you have already reviewed and turns the patterns into clear next steps — openings that hurt you, repeated blunders, and what to train next.

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FAQ

Questions, answered.

Straight answers to the questions people ask before they start. Need more detail? The full FAQ covers billing, accounts, and training.

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Is ChessTropic free?

Yes. Free never expires and needs no card. Game Review and puzzles are unlimited to start. Sign in to save progress, climb the leaderboard, and unlock AI Coach and Sparring.

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What is ChessTropic?

A chess improvement tool. Import your games for Stockfish review, clean up blunders, solve puzzles, train with an AI coach, and spar against styled bots.

Review a game
Do I need an account?

You can look around as a guest. An account saves your puzzle rating and streak, unlocks AI Coach and Sparring, and keeps reviewed games on your workspace.

Create a free account
How does Game Review work?

Paste a PGN or pull games from Chess.com or Lichess. You get engine grades on every decision and notes on where the game slipped.

Open Game Review
How do AI Coach and Sparring work?

Sparring bots are free for signed-in members. AI Coach games cost credits — free members get a monthly allotment; Unlimited gets more. The Cyber Chameleon explains your moves as you play.

Open AI Coach
Can I cancel anytime?

Yes. Cancel from your profile whenever you want. You keep Unlimited until the end of the period you already paid for.

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Release notes

What's new

Shipping history for ChessTropic, newest first. Open this anytime from the rail.

  1. v1.3 Latest

    Sparring bots, Puzzle Rush, and Coach Credits — train against style, then race the clock.

    • added Sparring: Free training games against styled bots for every signed-in member — no coaching lecture.
    • added Puzzle Rush: Solve against the clock — 3:00 and 3 lives — with its own all-time leaderboard.
    • added Coach Credits: Free members get a monthly allotment; Unlimited gets 100. Buy a one-time pack of 100 anytime.
    • improved Leaderboards: Daily, weekly, and all-time Practice boards now sit beside puzzle rating and Puzzle Rush.
    • improved Homepage: Clearer feature tour for Game Review, Blunder Override, Puzzles, AI Coach, and Sparring.
  2. v1.2

    AI Coach arrives, alongside Member Directory, Achievements, and a sharper ChessTropic shell.

    • added AI Coach: Play the Cyber Chameleon with live move notes, post-game debriefs, and follow-up chat.
    • added Member Directory: Browse public profiles and see who else is training.
    • added Achievements: Earn badges for practice streaks, puzzles, and milestones.
    • added Public profiles: Share a page for your practice stats, puzzle rating, and badges.
    • improved OpeningMatrix handoff: Opening trainer, Endgames Vault, Repertoire, and Community Courses open on OpeningMatrix when you need study tools.
    • fixed Safari: Board and shell layout fixes for Safari on macOS and iOS.
  3. v1.1

    Report, Blunder Override, and Game Review — tools that help you understand your own play.

    • added Report: Track your Chess.com and Lichess ratings, and see which openings you play most.
    • added Blunder Override: Replay past games and walk through the exact moments you threw away a win.
    • added Game Review: Import games from Chess.com, Lichess, or a PGN for a move-by-move engine breakdown.
  4. v1.0

    The first build: opening trainer, Endgames Vault, progress tracking, repertoire builder, community courses, and live puzzles.

    • added Opening Trainer: Drill 100+ official starter courses with Learn, Practice, and Time Trial.
    • added Endgames Vault: King opposition, Lucena, Philidor, king and rook mate, and king and queen mate.
    • added Progress tracking: Personal learning progress, puzzle ratings, and daily practice streaks.
    • added Repertoire Builder: Build and drill your own opening courses as White or Black.
    • added Community Courses: Publish a course to share with other players.
    • added Live Puzzles: An all-time rating leaderboard that updates as you solve.

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