I built a free tool to scout your opponents before a game - feedback welcome

Hey everyone,
I’ve been working on a side project called ChessStalker (ChessStalker dot com ) - a free tool that analyzes any player’s psychological patterns and exploitable weaknesses.)
What it does:
∙ Detects opening weaknesses (and which lines to avoid)
∙ Analyzes time management habits (do they flag often? when?)
∙ Measures tilt tendency (how they perform after losses)
∙ Shows their best/worst hours and days to play
∙ Generates a “Stalker Score” rating how predictable they are

Why I built it:
I wanted something beyond basic stats - actual preparation advice like “this player crumbles after losing game 1” or “avoid the Caro-Kann, they win 70% there.”

Would love feedback from the community - what’s useful, what’s missing, what’s broken?
Try analyzing yourself or your opponents!!

Thanks in advance
Best Regards

First impression.... WOW. Super nice looking interface. I love the idea too. I'm going to test it out a bit too.

yeah but i think its a little too much of an advantage for black or white

Interesting to see yourself through this lens. Quite clever!

you classify traps as gambits such as scotch and danish, these are not traps

Nice project

Thanks all for the great comments

@Lebron - I’ll double check traps vs gambits definition. Thanks for the feedback.

Hey, @Rujinik! I take a look to your chess analyzer website and I tested it with personal and friends accounts (professional defect, I’m software tester ). At the first sight, it looks great, I like very much the user interface, it’s clean and has a modern aspect. I like that it’s very easy to use it with chess dot com and lichess too, and it doesn’t store any cookies, so it is very fast.

The provided statistics are extremely interesting and pretty useful, I don’t even think at some of them. Also, I appreciate that you have integrated the Stockfish analyzer engine for openings and traps, this could help us to use this platform directly for finding new strategies and mistakes matching the opponent profile.

As defects and improvements, I found 2 minor bugs and I have 2 small suggestions, if you think they are relevant.

1. Minor bug: when you select Dark mode and you open the dropdown to change the language of the website, the letters for Spanish “ES” are not directly visible, only if I hover over them. On Light mode is ok.
2. Minor bug: at Openings & Traps section, at Traps used sub-section, there is no label text near that sub header. For Weaknesses there is “Avoid!”, for Falls Into there is “Use these!”. Maybe you can put “Be careful!” or something like this for consistency.
3. Small improvement: At the beginning of the analysis, at Stalker Score, I think would be useful a little bit more explanations for some parameters, especially for Mental (what does this represent?) and for numbers from Psychology section. They are very interesting but I don't know if they are easy to understand by everyone at the first hand.
4. Small improvement: I like you can share this statistic analysis on social platforms. Maybe it could be useful to add some more platforms here (I was thinking at Discord, Slack, Teams). Or maybe an option to download the analysis (as PDF) would be nice, but not mandatory.

Great job and thanks for your work for chess lovers!

I love the design, can I see the source code?

Very interesting project, it was accurate for my own profile ahah

Hi,

all reported bugs has been fixed. Special thanks to @Gaby13132 for the awesome tests.

Dont hesitate to let me know in case of any issues or query. Thanks a lot

Regards

I have deployed New version fixing all the bugs that you have reported and explaining everything a bit more clear. Hope u enjoy it.

Just let me know in case of any issue or new query or even new features!!
Happy to help!!

this is an amazing project, thank you!

Deployed with a few new feaures like filter by Rated/Casual, also all the metrics are explained and a few more surprises, hope you enjoy it!!

@Rujinik thank you for the new updates. The new explanations modals are very appropriate for understanding all the analyzed parameters. Also, the Rated / Casual filter is pretty nice, well done.
Just one issue I discovered now. When you go to Openings & Traps section -> hover with the mouse cursor over the " Weaknesses" or "Strenghts", the tooltip with the respective explanation is cut in its upper part. 

Thanks mate @Gaby13132, fixed

Amazing work. Why don't you let the result consolidate for both lichess and chess.com? I was a bit confused at the beginning why my data doesn't show up.

And thanks.. looks like I'm in good form at least according to your stats I personally don't feel 60% as good.

Thanks a Lot @Bhoopalan-Ilayalwar .

I thought about that but some people play different repertoire on lichess vs chess , so I kept them separately. I will think about that, thanks a lot for the feedback!

6/10 is exactly the minimal for the good form.

Don’t hesitate to share the app with your chess friends ☺️

wow that awsome some clean html\css the ui\ux is very good i love it