tool wanted for automatic creation of FEN from picture

[chessica]

Hello, I have a question. Could you get from photos of
a chess create a fen notation? It should be possible.
Or does something like this already exist?

[jefk]

https://github.com/notnil/fenify-3D
(needs testing imo)

there exist several other, developments in this field, don't know
which one is the best, or most ahead

https://chessify.me/news/chess-scanner- ... fy-website
(they claim it works, but i suggest it would need testing)



https://www.williamhoff.tech/chess-recognition

https://tech.bakkenbaeck.com/post/chessvision

https://www.researchgate.net/figure/The ... _322686139

[chessica]

Oh, I must have expressed myself incomprehensibly, I mean something different.
This one: a window string from the diagram here

[d]8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1

From this diagram I want to create the Fen string: 8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1

[a_node_uncut]

I find https://chessvision.ai/ useful

[chessica]

I find https://chessvision.ai/ useful

very nice,

8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1

it works very well

[jefk]

yep you wrote 'photo's so i assumed 3D.

but for 2 D chessvision indeed works quite well nowadays, i have it
as plugin with Chrome, and use it sometimes ;
but for pdf's loaded in Chrome it doesn't seem to work.
Apparently there's (another?) plugin, i'll have a look lateron
https://ebook.chessvision.ai/

and then there's also this one
https://chesspdfbrowser.com:9443/chessP ... /web/index
and this one:
https://chessify.me/news/chess-pdf-scanner-and-reader

(there exist commercial 'Forward- chess' E-books where you can analyze positions in
chess books, but that apparently -usually- comes with a cost (of the E-book/app).
https://forwardchess.com/download-instructions

[towforce]

A couple of failed experiments:

1. Astica (https://astica.ai/vision/describe-images) recognised that it was chess, and knew what a FEN was, but refused to attempt to build the FEN

2. Lens (https://lens.google.com/) has no way to ask about images - but, to my surprise, found a web page with that ACTUAL position on it - http://220v.gevo.cz/neobvykle-ulohy/ ("Tal's diabolical task - white wins")

3. Gemini Pro correctly described what a FEN is, and produced a FEN - but that FEN was not correct:

[d]8/1p2k3/2p2p2/3p1b2/B1P1nN2/2P3p1/5P1P/4R1K1 w - - 0 1

[towforce]

Lens (https://lens.google.com/) has no way to ask about images - but, to my surprise, found a web page with that ACTUAL position on it - http://220v.gevo.cz/neobvykle-ulohy/ ("Tal's diabolical task - white wins")

Now we know it's a "white to move and win" puzzle, someone can get Huntsman on the task!

I thought it looked easy - but when I tried the obvious solution (nf6+) in analysis mode at chess.com, I found it didn't work.

[modolief]

I find https://chessvision.ai/ useful

This looks pretty amazing, based on a perusal of their website. I didn't understand their business model so I asked ChatGPT, which told me:

Chessvision.ai uses a freemium business model, offering a free, limited version of its chess analysis software, along with a paid subscription that unlocks advanced features. The free version allows users to scan chess positions from images, books, and websites, which it then processes into a FEN (Forsyth-Edwards Notation) string or PGN (Portable Game Notation) for further analysis. This functionality is useful for casual players and learners, while the premium version expands on this by adding more robust scanning options, enhanced board depth, real-time position analysis, and integrations with chess websites and videos​

The platform primarily makes money through these premium subscriptions. The value of the paid features lies in how much deeper the tool can analyze positions and the added conveniences for those studying chess intensively, such as advanced game review options and educational tools useful for coaches and avid players​

In essence, Chessvision.ai sustains itself through offering valuable enhancements to casual and professional chess players alike, with additional learning resources and integrations beyond the basics.

[j.t.]

Oh, I must have expressed myself incomprehensibly, I mean something different.
This one: a window string from the diagram here

[d]8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1

From this diagram I want to create the Fen string: 8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1

https://github.com/tsoj/Chess_diagram_to_FEN

It's free