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What is Chessvision.ai?
Chessvision.ai is a chess position-scanning and analysis service. Rather than asking you to set up a board manually, it recognizes diagrams from screenshots, photos, ebook pages, websites and videos, then hands the position to an analysis board so you can see moves and engine feedback. The core idea is convenience: a diagram you encounter anywhere becomes a playable, analyzable position within seconds.
Its tools are organized by where you meet the diagram:
- Browser extension – scan diagrams on a web page, including puzzle hints. A Select Area mode handles pages with several boards.
- eBook Reader – open a PDF chess book, double-click any diagram to analyze it, and export selected positions as exercises to Lichess Study or a PDF sheet. Teachers are an explicit audience here.
- Mobile scanner app – photograph a printed diagram or pick an image from your gallery, then analyze it on the board. Scans can be saved to a personal library.
- Video App – play through moves and see YouTube videos matching the resulting positions, with a synchronized board, engine and move list. Filters let you search by concepts such as an exchange sacrifice in the Sicilian.
- Bots – analyze diagrams posted on Twitter, Telegram, Discord and Reddit without leaving those platforms.
Who it suits
| Reader | Useful part | Trade-off |
|---|---|---|
| Puzzle solvers | Browser extension hints | Convenience can undercut the training value of struggling first |
| Book studiers and coaches | eBook Reader and exercise export | Tied to PDF books rather than physical print |
| Players reviewing games | Video App with PGN loading | Value depends on whether matching videos exist for the position |
| Social chess users | Bots on chat and forum platforms | Analysis quality still depends on the underlying engine |
The practical distinction is that Chessvision.ai is a front end for getting positions into analysis, not a replacement for a full study platform. If your main need is scanning diagrams you already own or encounter online, it targets that job directly; if you want structured courses or long-term repertoire management, you would pair it with a dedicated training site.
A sensible first test: open a PDF chess book you already own, double-click one diagram, and see whether the recognized position matches the page. That single check tells you whether the scanning accuracy and export workflow fit how you actually study.
How do I scan a chess diagram from a website using the browser extension?
Install the Chessvision.ai browser extension for Chrome, Firefox or Safari, then open the page containing the diagram. The extension works on the page itself, so you do not need to download or screenshot the image first.
The basic steps
- Open the webpage with the chess diagram.
- Click the Chessvision.ai extension icon in your browser toolbar.
- Let it scan the diagram on the page.
- Review the recognised position on the analysis board and check the suggested move or engine line.
The extension is designed around scanning diagrams in a browser, so a single clear board on the page is the simplest case. If the scan looks wrong, compare the recognised pieces against the original diagram before trusting the analysis.
When a page has several boards
Pages with multiple diagrams, puzzle lists or embedded study boards need the Select Area mode. Use it to draw a box around the specific board you want, rather than letting the extension guess which one to read. This is the practical difference between a quick scan and a reliable one: area selection costs a few seconds but removes most misreads on busy pages.
The extension also adds a Videos section to Chess.com analysis in Chrome, so you can watch videos explaining the position while you study it.
A realistic use case
Suppose you are working through an online article with six puzzle diagrams. Scan the first one, solve it, then move to the next. When the layout is dense or a diagram sits beside text and adverts, switch to Select Area for each board. If you are solving a puzzle and want a hint, the scan gives you the best move and a video explanation of the position.
Related ways to scan the same diagram
- On a phone, take a photo of a printed diagram or pick one from your gallery in the mobile scanner app, which also finds matching YouTube videos.
- For PDF chess books, the eBook Reader opens a diagram on double-click for analysis and lets teachers export selected diagrams to a Lichess Study or a PDF sheet.
- If the diagram appears in a chat or social post rather than a normal webpage, the Telegram, Discord, Twitter and Reddit bots handle analysis in those platforms.
Next step: install the extension, open a page with one clearly separated diagram, and try a normal scan first. If the result is inaccurate, repeat it with Select Area before concluding the diagram is too low-resolution to read.
Can I analyze chess positions from a PDF ebook, and how does the eBook Reader work?
Yes. Chessvision.ai includes an eBook Reader built for exactly that job: it processes a PDF chess book you already have, makes the diagrams interactive, and lets you open any diagram for analysis by double-clicking it. According to the site, the Reader won the Best Chess Startup 2020 award at the ChessTech2020 Conference, and there is a teacher-oriented workflow for pulling diagrams out of books, turning them into exercises, and exporting to a Lichess Study or a PDF sheet.
How the workflow fits together
| Step | What you do | What the tool provides |
|---|---|---|
| Load | Open your PDF chess book in the Reader | The Reader processes the book |
| Pick | Double-click a diagram | The diagram opens on an analysis board |
| Study | Review the position | Position analysis, plus video explanations via the Videos tab |
| Reuse | Select diagrams for students | Export to Lichess Study or PDF exercise sheet |
Practical scenario
A club coach preparing a session on a middlegame theme opens a PDF of a classic manual, double-clicks the diagrams that illustrate the idea, and exports them as exercises. A solo improver reading an endgame book does the same but stops at the analysis board to check whether the author's suggested move holds up.
What to weigh
The Reader is strongest when your material is already a PDF with clear, well-printed diagrams; scans of poor quality or books with unusual diagram styles are the cases where recognition is most likely to need a second look. If your books are physical rather than digital, the mobile scanner is the matching route: photograph a diagram or pick one from your gallery, and the app recognizes the position on an analysis board, can find matching YouTube videos, and can save favourites to a Library.
A sensible next step is to test one chapter of a book you know well, comparing the Reader's extracted positions against the printed ones before you commit a whole study plan to it. If you want the same analysis without a PDF, the browser extension scans diagrams on websites and handles multiple boards with a Select Area mode, and the bots bring the same capability to Twitter, Telegram, Discord and Reddit.
What is the best way to scan a chess diagram from a printed book or a photo on my phone?
For a physical book page or a photo you already have on your phone, the most direct route is Chessvision.ai's mobile scanner app: you photograph the diagram or pick an image from your gallery, and it recognises the position and shows it on an analysis board. The same service also offers a browser extension for on-screen diagrams, an eBook Reader for PDF chess books, and a video app, so the phone camera is the piece aimed specifically at paper and camera-roll sources.
Choosing between the phone camera and the eBook Reader
| Source | Sensible tool | Why |
|---|---|---|
| Printed book, newspaper, worksheet | Mobile scanner app | Camera capture, no need to retype or set up a board |
| PDF chess book on a computer | eBook Reader | Double-click a diagram in the PDF to send it for analysis |
| Diagram on a web page | Browser extension | Scans what is already on screen, including puzzle hints |
| Position in a YouTube video | Video app | Finds videos matching a position, or adds a synchronised board |
The trade-off is speed versus accuracy. A photograph is fast, but glare, page curvature, or a busy background can make the scan fail, so flatten the page, fill the frame with the board, and keep the phone parallel to it. A PDF diagram is usually cleaner to recognise, but only works when you have the digital file.
What to do with the scan afterwards
The app saves favourite scanned diagrams to a Library, so a position you want to revisit is not lost. It also finds matching YouTube videos and starts them where the position occurs, which is useful when you want an explanation rather than just an engine line. Teachers get a further step: diagrams pulled from books can be turned into exercises and exported to a study or a PDF sheet.
If you mostly work on a desktop rather than a phone, start with the browser extension for screen diagrams and the eBook Reader for PDFs, and keep the phone app for anything on paper. Chessvision.ai is at Chessvision.ai; for playing through or storing positions you scan, a free account on Lichess is a common companion.
How can I find YouTube videos that match a specific chess position I'm studying?
Use Chessvision.ai’s position-matching tools rather than searching YouTube by opening name, player or vague description. The site is built around scanning or selecting a chess position and then surfacing videos that contain that exact position.
Practical ways to do it
- Mobile scanner: take a photo of a printed diagram or choose an image from your gallery. The app recognises the position, opens it on an analysis board, and automatically finds matching YouTube videos, starting playback from the point where the position occurs.
- Video App: play moves on a board in Board Explorer and see YouTube videos matching positions as they arise. You can also load a PGN of your own game and use the videos found to work through the positions you actually reached.
- Concept filters: search videos by chess ideas, for example exchange sacrifices in the Sicilian. This suits study sessions where you want several examples of a motif rather than one specific game position.
- Browser extension: when a diagram appears on a website, scan it in the browser and open the Videos tab to see explanations of that position. On Chess.com in Chrome, the extension can add a Videos section to the analysis page.
Whose observations these are
The page evidence describes the product’s own features: automatic YouTube matching from scans, playback from the matching moment, PGN loading, and concept filters. Treat those as product claims. In practice, the most reliable route is to scan a clean, high-contrast diagram or load a PGN, because both give the matcher an exact position instead of a rough description.
A useful next step
If you are studying from a book, photograph the diagram with the mobile scanner and let it find the matching video. If you are reviewing your own game, load the PGN into the Video App and step through the critical positions. For a broader thematic session, use the concept filters instead of a single position.
Decision criterion
Choose exact-position scanning when you want analysis of one diagram or one moment in your game. Choose concept search when you want several illustrative videos of an idea. The trade-off is precision versus breadth: scanning gives you the closest match to your position, while filters give you more material but less direct correspondence to what you are studying.
Which platforms and bots (Twitter, Telegram, Discord, Reddit) support scanning and analyzing chess diagrams?
Chessvision.ai supports diagram scanning across four messaging and social platforms, plus its own browser extension, eBook reader, mobile app, and video app.
Bots by platform
| Platform | What it does |
|---|---|
| Analyzes chess diagrams posted on Twitter | |
| Telegram | Analyzes diagrams directly in private chats and group chats |
| Discord | Analyzes diagrams and can be added to a server |
| Analyzes diagrams on popular chess subreddits |
Other ways to scan
- Browser extension for Chrome, Firefox, and Safari scans diagrams on websites, including a Select Area mode when several boards appear on one page. In Chrome it can also add a Videos section to Chess.com analysis.
- eBook Reader opens PDF chess books, processes them, and analyzes a diagram when you double-click it.
- Mobile scanner app recognizes positions from a photo or gallery image, finds matching YouTube videos, and saves diagrams to a Library.
- Video App finds YouTube videos matching positions in a board explorer and plays them with a synchronized analysis board.
Practical next step
If your diagrams already live in a chat or forum thread, start with the bot for that platform—it avoids saving and re-uploading images. For study material in PDF form, the eBook Reader is the more direct route, and for a diagram on an arbitrary webpage, the browser extension is the fastest option.
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