Personalized training from Chess.com and Lichess

Find the Mistakes That Keep Costing You Games

Import from Chess.com or Lichess. ChessLogix finds recurring weaknesses, shows where your openings break down, and turns both into focused training.

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One full analysis free · No card required · Chess.com and Lichess

Chess.com and Lichess Already Analyze My Games. Why This?

Because a game analyzer answers one question about one game. The thing that is actually costing you rating is a decision you make in a hundred games, and no single-game report can see it.

ChessLogix does not replace the engine review on the site you play on — it reads the same games and asks a different question.

• Public username only
• No platform password
• Delete imported games anytime

Your Games Become Your Training Plan

Four stages, in order. Each one takes its input from the stage before it, which is what stops these from being four unrelated tools.

Diagnose

Each game comes back as a written lesson — what your plan was, where it turned, and the rule to take from it. The findings are then counted across your history, so a habit separates from a bad day. How the analysis works

Prepare

Opening Lab walks the branches you actually reach and finds where your score drops. Practical alternatives come with the human result and the engine evaluation beside each other. Inside Opening Lab

Train

The exact position you missed shows you what you missed. A related position on a different board tests whether you can now find it. How the puzzles are built

Measure

Import newer games and the same counts are recomputed. A tendency appearing less often than before is the signal that something moved. Recurring-mistake reports

One Player, 27 Games, One Focus

A single anonymized account through one full cycle. The figures describe this run; what your own import turns up depends on the games and positions in it.

1. One weak opening branch, not one weak opening — The report followed the Italian Game past its name to the exact move order where this player’s score separated from the rest of their repertoire.
2. One recurring decision, ranked first — Everything found across the 27 games was ranked by frequency and cost. Converting a clear advantage came out on top: 5 of 8 chances failed, at a median cost of 29.3% win probability.
3. Four repertoire decisions and three puzzles — Generated from those findings — the saved lines with the reason each was chosen, the puzzles rebuilt from the positions where the evaluation actually turned.

Walk Through the Sample Report

Three Things You Get Back

One coaching priority

Not five things to work on. One current focus, chosen from a ranked list, with the numbers that chose it and a rule small enough to run in a blitz game. What the AI coach reports

The branch where your openings break down

Your own record beside human results for your rating range and time control, with the engine evaluation next to both — then the lines you choose saved as a repertoire you can rehearse. Inside Opening Lab

Training built from your own positions

First the exact position you missed. Then a different position that asks for the same decision, to test whether the idea survives on a board you have not seen. How the puzzles are built

Pricing

Credit-based, so the cost of an action is predictable. A full game analysis is 4 credits; a base analysis is 1. Opening Lab, browser-side puzzle scanning and repertoire practice cost nothing. Monthly credits reset each cycle.

Questions People Ask First

What data is imported, and what is stored?

The games themselves — moves, clock times, result, time control, opponent name and ratings as they appear in the game record — for the handles you connect, plus everything derived from them: engine evaluations, explanations, opening statistics, extracted puzzles, saved repertoire lines and training history. ChessLogix reads public game data and never asks for your Chess.com or Lichess password. Individual games can be deleted, which removes the analysis derived from them.

Which actions consume credits?

Server-side game analysis and reports. A full game analysis costs 4 credits, split across engine evaluation with move explanations, the opening report, positional analysis and the performance report; the 1-credit base analysis can be run on its own. The browser-side puzzle scan, Opening Lab exploration and repertoire practice cost nothing.

How many games do I need?

One game gives you a full single-game analysis. Finding what repeats needs a sample: nothing is claimed below four opportunities for a pattern, six across three games is reported as medium confidence, and twelve across four games as high. Those count opportunities rather than games, so how many games it takes depends on how often the situation comes up in your play.

Is a high human score the same as a good move?

No, and ChessLogix never merges the two. A human score says how players in a rating band did from a position with a clock running — practical difficulty. An engine evaluation says what the position is worth under deep search — soundness. Both are shown, labelled, side by side.

Will it raise my rating?

That is not something any tool can promise. What ChessLogix measures is whether a tendency appears less often in games you play after training it, on a fresh sample of your own games.

Are Chess.com and Lichess both supported?

Yes, natively and equally: connect a handle on either platform, preview your games, and import. PGN upload covers over-the-board games and anything else. Several handles per platform are supported.

Start With Your Last Twenty Games

Connect Chess.com or Lichess with a public username, import a batch, and read what comes back. Your first full analysis is free and no card is required.

Analyze My Games Free   View a Real Example