These are questions that I found on various chess forums — and I included especially questions that have not been answered properly by other websites online.
Users can also play games against the at a number of difficulty levels.
Therefore, a lot of cheaters playing against players in the lower end of the ELO rating system will never be caught.
The website implements a version of the Stockfish engine that runs on the user's local machine within the user's web browser for limited or infinite analysis, which will calculate best lines of play or major opponent threats.