Analyze Your Games. Know What to Train Next.
Import from Chess.com, Lichess, or PGN. ChessLogix explains the critical moves, finds what keeps recurring, and turns those findings into targeted training.
Free learning platform · No card required · Chess.com and Lichess
- No Chess.com or Lichess password — a public username is all it needs.
- The learning platform is free — AI Move Explanation and Meta-Coach are an optional membership.
- Every recommendation comes from your own games and Stockfish analysis.
- The move, its classification and what it cost sit at the top: 11.Ne1, a miss, 22% of the expected result.
- Your Move Idea names the likely purpose of the move on the board, then What Happened says what it allowed.
- Alternative prints the engine line, so the recommendation is something you can play out rather than take on trust.
Read the Whole Game as One Lesson
Deep analysis does not stop at a list of flagged moves. It names the game, says what your plan was, marks the moment it turned, and ends with a rule you can carry into the next one.
- The game gets a name and a thesis: "The Premature Attack", and the plan that led there.
- The Turning Point is dated and linked — Sudden Collapse, jump to ply 27 — so you can replay it.
- The move list beside it carries every classification and evaluation the narrative is built on.
- One rule, in when/then form, small enough to actually run at the board.
- The Opening Coach block sets what you tried against what the position demanded, with the plies to check.
Understand Why a Single Move Failed
Not "this was an inaccuracy" — what the move was trying to accomplish, what it allowed, the stronger continuation, and the rules worth carrying into the next game.
- What Happened prices the decision: White’s advantage fell from +3.05 to +0.47.
- Opponent’s Response says whether the mistake was punished — here it was not, which is why it is easy to miss.
- The takeaways are written as things to do at the board, and the tags file this position with every other one like it.
Find the Same Weakness Across Your Other Games
A single slip tells you very little. The same slip in a dozen games is a training target. Findings are tagged and gathered across everything you have imported, then ranked by what they cost you.
- Each recurring cause is named and priced in win probability, not just counted.
- Occurrence counts sit next to the cost, so a rare expensive habit can outrank a common cheap one.
- Training Focus is the hand-off: each tag maps to the exercises that address it.
Train the Positions It Points At
Analysis is only useful if it changes what you do next. Every finding lands somewhere specific.
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Critical position
The moment the evaluation moved, with the side to move you actually had.
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Explanation
What the move was for, what it allowed, and the engine line that was stronger.
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Recurring pattern
The same decision, counted across every game you have imported.
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Training
Opening preparation when it is a repertoire gap, puzzles when it is a decision.
Positions where you missed a stronger move become puzzles from your own games. Openings where your score drops link straight into Opening Lab.
Frequently Asked Questions
Which platforms can I import from?
Import games directly from Chess.com or Lichess, or upload a PGN. Both platform integrations are live: connect a handle, preview your recent games, and pick the ones you want. You can also import a single Lichess game by URL, and you can attach more than one handle per platform.
Do I need to give ChessLogix my password?
No. Imports use each platform's public game data for the handle you provide. ChessLogix never asks for your Chess.com or Lichess password.
How deep is the engine analysis?
Deep enough that critical positions come back with several serious candidate moves rather than a single line, using Stockfish with its neural evaluation. Depth varies with the position and where you are looking at it, so the engine panel always shows the depth behind the line in front of you rather than a number quoted on a marketing page.
Is an accuracy score a good measure of how well I played?
It is a rough one. Accuracy weighs every move the same, so you can post a high score in a game where you missed the one moment that decided the result. ChessLogix weights swings by size and phase and leads with the moves that changed the outcome.
How sure is the analysis?
The engine part is Stockfish's judgement at the depth it searched, and it is shown as that rather than as chess truth. Recurring patterns are only named once the same situation has come up often enough to be a habit rather than a bad afternoon, and each one is labelled with how firmly it stands. There is a fuller account in the pattern guide.
Does it claim to know what I was thinking?
No. Explanations describe the idea a move was pursuing on the board and what it allowed. Some pattern names borrow the shorthand players use with each other and do read like states of mind; they name a recurring board situation, and every position behind a name is shown, so you can always see for yourself why it was given.
What is free, and what needs the AI membership?
Free: importing from Chess.com, Lichess or PGN, Stockfish analysis, critical-moment detection, move classifications, engine lines, recurring-pattern counts and the hand-off into puzzles and Opening Lab. The AI membership adds two things — Move Explanation, which turns a move and its engine line into plain English, and Meta-Coach, which reads across all your games to pick one priority. They are paid because each one calls a large language model every time it runs.
Will this work if I am a beginner?
Yes. Explanations are written in ordinary language rather than notation-only variations. Lower-rated games also tend to contain clearer, more repeatable mistakes, which makes the grouping across games easier to read.
Start With One Game
Connect Chess.com or Lichess, import a recent game, and read the engine analysis end to end. Import, Stockfish analysis, critical moments and classifications are free. Move Explanation writes the reasoning out in plain English and comes with the AI membership.