Chessvision.ai Chess Position Scanner

SOFTWARE PAWEŁ KACPRZAK

4.6 (

753 ratings

)

Extension Accessibility 100,000 users

25 support issues

Siderite Zackwehdex

Apr 6, 2026

JS Error in study list

Go to any study list and you get a js error:
study.js:1 Uncaught TypeError: Failed to execute 'observe' on 'MutationObserver': parameter 1 is not of type 'Node'.
at study.js:1:1549
at study.js:1:1575
and the debugger stops here, at R.appendChild, with R == null:
M.setAttribute("id", Yr),
M.setAttribute("class", _.rootClass),
R.appendChild(M),

7snov

Jul 19, 2025

i have a problem whenever im in an ongoing game on chess.com

the problem is whenever im in an ongoing game it says i could not use this extension in an ongoing game so can yall fix it please...

Jamie Steiner

Jun 4, 2025

broken on latest lichess engine update

RuntimeError: Aborted(CompileError: WebAssembly.instantiate(): Refused to compile or instantiate WebAssembly module because 'unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "script-src 'nonce-5dUJtmOx4B0AX8ViWGTgQ3Pe' 'self' lichess1.org"). Build with -sASSERTIONS for more info.

Fabricio S. Alves (FSA)

Mar 8, 2024

Can't scan games from chess.com library

Games in the chess.com library are being flagged as “ongoing games” and the extension refuses to check them.

MAHMOUD IBRAHIM

Jun 25, 2023

Error occurred while connecting with the server

Error occurred while connecting with the server :(If you feel that this error should not have occurred, please report it at hello@chessvision.ai

Yahyah Shaikh

May 1, 2023

At web Site

Do not use the extension in an ongoing game. If the game has already ended and you would like to scan positions from it, go to Chess.com analysis first and then open the extension.