Find the patterns that cost you rating
Type your Chess.com username. Your games are read in your browser, and the numbers and findings are free.
- Numbers and findings, free
- Stockfish runs in your browser
- Optional AI report with a plan
What you get for free
chess-report is a free tool for Chess.com players who want to know what costs them rating. It reads the games of any Chess.com player in your browser and shows the numbers, the findings and the mistakes Stockfish finds, for free. An optional AI-written report with a plan costs $3.
Your numbers
Games, score and rating change, for anything from the last 24 hours to a whole year, or your own dates.
Automatic diagnosis
Findings sorted from alerts to what is working, each one with its numbers, such as Tilt, Problem opening, Losses on time, and Long sessions.
Evidence tabs
The numbers behind every finding, in cards: Results, Rating, Openings, Moves & clock, Mistakes & accuracy, Opponents, Sessions, Hours, and Volume.
One tab per game type
Bullet, Blitz, Rapid, and Daily each get their own tab. Different time controls are never mixed.
Compared with before
Turn on the comparison and the numbers show the previous period next to them, with what went up and what went down.
- Games
- 214
- Score
- 52%
- 104-14-96
- Rating
- 1,476
- 1,438 → +38
Tilt, Alert
After two losses in a row your score drops to 38% (overall: 52%). Stopping after the second loss of a session tends to protect your rating.
Losses on time, Attention
27% of your losses are on time. Keep an eye on the clock in the "Moves & clock" tab.
Strong opening, Good
Italian Game C50: 61% in 32 games. Worth playing it more.
Your mistakes, found by Stockfish, in your browser
Stockfish runs on your computer and checks up to your last 100 games of a game type, move by move. Your games are not sent to us, and the results stay saved in your browser, so the same games are not analyzed twice.
Mistakes per game
Blunders, mistakes and inaccuracies per game, by phase of the game and by time left on the clock.
Where losses slipped away
Where each loss slipped away, with a link to the game on Chess.com.
New findings
New findings, such as mistakes under time pressure and losses decided in the opening.
Stockfish is free software (GPLv3): see the license and source.
How it works
Type a Chess.com username
Pick a period and, if you want, the comparison with the previous one.
Read your numbers and findings, free
Your browser downloads the public games from Chess.com and builds the diagnosis right there.
Get the AI report, if you want
A written report with a plan, built from those numbers and the moves Stockfish marked.
The AI report
The numbers show what is going wrong. The report tells you what to do about it.
- Written by our specialized chess-analysis agent from the statistics of your period and the moves Stockfish marked. Before the report, Stockfish checks your last 100 games of that type in your browser, which takes a few minutes (longer on a phone). Its knowledge base keeps growing, so it reads your games better with every report, and it is built with input from chess players.
- Written in English.
- Sections:DiagnosisWhat changedWhat to keepWhat to stop doingWhat to studyTwo-week planRoutine rulesHow to track
- Download it as a PDF. It stays at its link for 30 days.
- Needs at least 40 games of one game type in the period. Below that, the site tells you how many more to play.
$3 per report
One payment. No subscription and no account.
Search your games first: the report is offered from the badge at the top right of your analysis.
Pricing detailsPrivate by design
No account
No account, no cookies and no analytics.
Straight from Chess.com
Your browser fetches the games straight from Chess.com’s public API, not through our server.
Stored only for a purchase
We only store data when you start a purchase, and delete it after 24 hours (not paid) or 30 days (paid).
Frequently asked questions
How can I analyze my Chess.com games?
Type your Chess.com username on chess-report, pick a period and press "Analyze my games". Your browser downloads your public games from Chess.com and shows the numbers, the findings and the evidence tabs, for free.
Is chess-report free?
Yes. The numbers, the findings, the evidence tabs and the Stockfish analysis are free. Only the optional AI-written report is paid: $3 per report, one payment, no subscription.
Does it use Stockfish?
Yes. Stockfish runs in your browser and checks up to your last 100 games of a game type, move by move, on its own as soon as you open them. The AI report is built on it, so the purchase opens when it finishes: a few minutes, longer on a phone. Your games are not sent to us for this analysis.
Do I need an account?
No. The free part only needs a Chess.com username. The report is a single payment, also without an account.
What languages does the report support?
The AI report is written in English.
Is my data stored?
The free part keeps the games in your browser’s memory and the engine results in your browser’s storage, not on our server; our hosting provider logs the page addresses, which include the username you search. When you start a purchase, the order is stored and deleted after 24 hours if it was not paid, or after 30 days.
Can I look up any player?
Yes. The games come from Chess.com’s public data, so any username works, yours or your next opponent’s.
Which game types are covered?
Bullet, Blitz, Rapid, and Daily, each in its own tab, never mixed.
See where your rating goes
Type a username and get the numbers and findings, for free.