Chess diagnosis · Chess.com · Lichess
You're not stuck because
you play too little
Two players rated 800 can be losing for completely different reasons — one hangs pieces, the other runs out of clock. Enter your rating and we will name the leak, then give you three things to do this week.
Free · start without linking an account · we never ask for your password
- 01
Enter rating
Which site, what number. That is all we need.
- 02
Find the cause
We read your recent games for where it leaks.
- 03
Three actions
What to start — and what to stop doing.
How it works
Your rating is only the starting point
Rating narrows the candidates. Your recent games hold the answer. The steps below run in order and stop as soon as the cause is clear — so you never spend time you did not need to.
- Self-report
- Five questions narrow the candidates. No account needed to get this far.
- 30s
- Link account
- Timeout rate, early collapses, tilt, puzzle gap — from public data only.
- 2s
- Clock analysis
- Where your time goes. Opening overspend shows up here.
- 5s
- Engine analysis
- Where blunders happen, and where won games slipped away.
- 1m per game
- Live diagnosis
- Only when the above is inconclusive. Solve or play to confirm the cause.
- 15m
What is different
Why Tempo
-
Cause first
The usual — a generic curriculum per rating band
Players at the same rating fail for at least three different reasons. A generic plan is right for one of them and wasted on the rest.
-
We tell you what to stop
The usual — keep adding to the to-do list
If your puzzle rating far exceeds your game rating, more puzzles is not the answer. In that case we tell you to drop them.
-
Three actions, never more
The usual — a ten-item study plan
Past three, follow-through collapses. We pick the three biggest leaks and defer the rest.
-
We say when we do not know
The usual — confident numbers and percentiles
Unverified figures do not go on screen. Low-confidence findings are shown as possibilities, not conclusions.
-
No password required
The usual — full account login
We read only what Chess.com and Lichess publish. A username is enough, and you can skip linking entirely.
-
Sources are visible
The usual — uncredited coaching tips
Built on Chess.com's official study guides (NM/WGM/CM) and Lichess open data. You can see where each prescription came from.
What it is based on
- Built on Chess.com's official study guides (NM/WGM/CM) and Lichess open data.
- Account linking reads public data only. We never ask for your password.
- Numbers we haven't verified don't go on screen.
FAQ
Before you ask
Do I have to link an account?
No. Your rating alone produces a diagnosis. Linking simply makes it far more precise, because your recent games hold the answer. Even then we read only public data and never ask for your password.
I play on Lichess, not Chess.com.
Both work. Ratings are normalised internally before diagnosis. We do not show you a cross-site conversion, though — no accurate one exists.
Is my rating too low?
No. Lower bands actually diagnose more cleanly because the causes are sharper. We cover roughly 400 through 1800+.
What if the diagnosis is wrong?
When your rating alone is inconclusive we do not guess — we offer a live diagnosis instead. A few puzzles or one game usually settles it. Low-confidence findings are labelled as possibilities.
What is this based on?
Chess.com's official study guides (NM Robert Ramirez, WGM Dina Belenkaya, CM Can Kabadayi) plus Lichess open data and its puzzle database. Each prescription shows its source on the results page.
Does it cost anything?
The diagnosis is free. Everything is free during beta, and we will tell you before any paid plan appears.
Start with a diagnosis
Takes 30 seconds. Your rating alone is enough to begin.
Get a free 30-second diagnosis