ChessAnalyzerGuides
How chess analysis works, in plain language — and how to use it to improve.
How to analyze your chess games (and actually improve)
A practical routine for reviewing your own chess games with an engine: what to look at first, what to ignore, and how to turn mistakes into lessons.
Brilliant, Best, Mistake, Blunder: move classifications explained
What each move label means in ChessAnalyzer, how it is calculated from winning chances, and why a Brilliant move is rare.
Chess accuracy explained: what your accuracy score means
How ChessAnalyzer calculates accuracy from Stockfish 18 evaluations, why it differs from average centipawn loss, and how to use it.
How to import your games from Lichess and Chess.com
Three ways to get your games into ChessAnalyzer: by username, by PGN file, or by copy and paste — on the web and on Android.
Stockfish 18 explained: depth, evaluation and engine lines
A plain-language guide to reading a chess engine: what +1.50 means, what depth and nodes are, and how to use multiple engine lines.
Estimated chess rating: how your performance is calculated
How ChessAnalyzer estimates a rating from the quality of your moves, why it shows a range, and how it differs from official ratings.