ChessyAI Chess Coach appHow to review a game
- Enter your username and choose Chess.com or Lichess. We load your recent games through the site's public API. There is no login and no limit on the number of reviews.
- Pick a game from the list. Most people start with a recent loss, which is usually where the lesson is.
- Read the review. Stockfish analyzes every move in your browser. You get an accuracy score for each player, a label on every move and a graph of the evaluation across the game.
- See your pattern. After the single game, the tool scans your last 30 to 50 games and looks for one recurring problem, so you can see whether this loss was a one-off or a habit.
What the move labels mean
Each move is compared with the engine's choice and labeled by how much it changed your position. The labels are based on how much your winning chances drop, so the same mistake counts for less in a position that was already lost or already won.
| Label | What it means |
|---|---|
| Best | The engine's top choice, or as good as it. |
| Excellent | Very close to best. Nothing meaningful lost. |
| Good | A solid move that gives up a little. |
| Inaccuracy | A small slip. Your position got somewhat worse. |
| Mistake | A clear error that gave away a real part of your advantage. |
| Blunder | A serious error, often a hung piece or a missed mate, that can turn the result. |
| Great move | A strong move that was hard to find, often the only one that holds or wins. |
| Miss | Your opponent gave you a chance, such as a free piece or a winning tactic, and you didn't take it. |
Pay special attention to misses. Many players only look at their own blunders, but the chances they failed to take often cost just as many points. For a deeper explanation of the thresholds, read inaccuracy vs mistake vs blunder.
Accuracy and the eval graph
Accuracy is a score from 0 to 100 that sums up how close your moves were to the engine's, based on how much each move cost you. It's a useful way to compare your games over time. It's not the same formula Chess.com uses, so expect the two numbers to differ by a few points for the same game. What counts as a good score depends a lot on your level and the time control. Our guides on what accuracy means in chess and what a good accuracy is on Chess.com go into detail.
The eval graph shows the engine's evaluation after every move. Above the middle line White is better, below it Black is better. The useful part is the shape. A sudden cliff is a blunder. A slow slide is a series of small inaccuracies, often a sign of a position you didn't understand. A graph that swings back and forth means both players were making mistakes, which is normal at most club levels. Tap any point to jump to that move.
The recurring pattern
One game tells you what went wrong once. Thirty to fifty games tell you what keeps going wrong. After your review, the tool scans your recent games for the single most common type of error: pieces left undefended, threats you didn't see, captures that lost material, chances you missed, or trouble on the clock. Only one pattern is shown, on purpose. It's much easier to fix one habit than five at once.
If the pattern is hanging pieces, start with how to stop hanging pieces. For a broader view of your strengths and weaknesses, run the free chess weakness report.
How to get the most out of a review
- Look before you check. Go through the game on your own first and mark the moves you think were bad. Then compare with the engine. The difference teaches you more than the review alone.
- Focus on the biggest swing. Find the one move where the graph drops the furthest and understand it fully. Ignore the small stuff.
- Replay the better line. Open the position in the analysis board and play the engine's move forward until you see why it's better.
- Write one sentence. "I moved my knight and left the bishop undefended." Keep a list. After ten games, the list shows you what to work on.
For a full routine, see how to analyze your Chess.com games. If you've used up your free Chess.com reviews for the day, our guide on free alternatives to Chess.com Game Review compares the options. All our guides are in one place.
Other free tools
Want to know when you play your worst chess? The tilt detector shows your bad hours and what happens after a loss. Curious how your rating compares on another site? Try the rating converter.
Chessy — AI Chess Coach app reviews every game automatically, turns the mistakes into puzzles from your own positions, and has a coach that has read your games and can explain any move you ask about.