About this site

Best Chess Move Calculator is made by the team behind ChessHelper (chesshelper.ai), an AI chess analysis extension for Chess.com and Lichess. We built the free calculator on the home page so anyone can check the best move in a position without installing anything, and we list ChessHelper alongside other tools in our comparison.

Because ChessHelper is our own product, we disclose that at the top and bottom of every page. The comparison uses information published by each tool, and we point out where another tool is the better choice, for example the Lichess analysis board for free deep analysis.

Fair play

We built this site for studying positions and reviewing finished games. Using engine help during a rated or tournament game breaks the rules of Chess.com, Lichess, FIDE and US Chess.

Open-source software

The calculator runs Stockfish 10 (via stockfish.js, GNU GPL v3) and chess.js (BSD license). Copies of both licenses are linked in the footer.

Contact

Questions or corrections: through the contact page at chesshelper.ai.