Next Chess Move Calculator
Best move
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Load a position
Free Chess Move Calculator
Set up a position from a finished game, a puzzle, or a book, and Stockfish 18 calculates the best next move. Play the moves on the board or paste a FEN. You get the best move, the evaluation, and the line the engine expects, plus its second and third choices so you can compare.
Frequently Asked Questions
How does the chess calculator find the best move?
It runs Stockfish 18 in your browser. The engine searches the position to depth 18 and ranks the moves by the evaluation each one leads to.
Is it free?
Yes. There is no limit and no account.
How do I enter my position?
Play the moves from the starting position, or paste a FEN. Chess.com and Lichess can both copy a FEN from any game.
Can I use it during a game?
No. Using an engine in a live game is cheating and breaks the rules of every chess site. Use it afterwards, to see what you missed.
Can it check a whole game?
The Game Analyzer grades every move of a game. The Analysis Board is the same board as this one without the single answer on top.