Chess Position Analysis: Free Tools, PGN and Method

By Yuval Incze · Updated Jul 5, 2026 · 5 guides

Chess position analysis means answering five questions in a fixed order: king safety, material, piece activity, pawn structure, and candidate moves. These guides cover that method, the free tools that check your answers, and the PGN workflows that get your games in front of them.

Chess position analysis is the habit of judging a position by fixed criteria instead of by feel: whose king is safer, who has more material, whose pieces do more work, which pawn structure will still be good in twenty moves, and what the two or three candidate moves actually are. Every serious player also runs their games through an engine, and that is where most analysis time gets wasted, clicking through Stockfish lines with no question in mind. Stockfish will happily tell you the evaluation swung 3 points on move 24; it will not tell you why you keep making that kind of mistake. The guides below cover both halves: the tooling (free engines, analysis tools, PGN files, the review features on the big sites) and the method (what to look for, in what order, and how to turn one game's lesson into a habit). Each guide stands alone, so start with the one that matches what you are stuck on.

Analysis guides

Tools, method and workflows, from your first engine review to a repeatable improvement loop.

• Free Analysis

  The honest guide to free chess analysis — Lichess, Chess.com Game Review, desktop Stockfish, and free tiers. What each gives you, and what free usually misses.

• Analyze a Position

  A five-point checklist for analyzing any chess position — king safety, material, activity, structure, candidate moves — plus how strong players actually think.

• Game Analyzer

  What a chess game analyzer does, how single-game review differs from cross-game pattern detection, and an honest comparison of Lichess, Chess.com and Chess DNA.

• PGN Analysis

  What a PGN file is, how to export one from Chess.com or Lichess, and where to analyze it free — plus why analyzing your last 25–50 games beats one at a time.

• Lichess vs Chess.com

  Honest head-to-head of Lichess and Chess.com analysis: free unlimited engine vs coach-style Game Review. Which to use, and where third-party tools fit.

Frequently Asked Questions

What is chess position analysis?

Chess position analysis is judging a position by fixed criteria instead of by feel. The standard five checks are king safety, material balance, piece activity, pawn structure, and the candidate moves available. You run them in that order, because a king safety problem overrules a structural one, and you finish with two or three concrete candidate moves rather than a verdict. An engine can then grade that work: it gives a number in pawns, where anything inside roughly 0.3 is noise and a swing of two pawns or more is the moment that decided the game.

How do I analyze a chess position without an engine?

Work the five checks in order and write the answers down. Count material first, then ask which king is safer and why, then which side has more pieces doing real work, then which pawn structure you would rather own in twenty moves. Only then list candidate moves, usually two or three, and calculate each one until the position is quiet enough to judge. The discipline matters more than the conclusion: writing your evaluation before checking it is what turns analysis into calculation practice rather than reading.

What is the best free chess analysis tool?

For raw engine strength, Lichess is the strongest free option: unlimited server-side Stockfish analysis of any game you import, at no cost and with no daily cap. Chess.com gives one free Game Review per day on the free plan, with coaching-style explanations rather than bare numbers. Chess DNA takes a third angle, running Stockfish across your recent games together and reporting the patterns that repeat, the blunder types, openings and endgame situations. The best free workflow combines a per-game engine check with cross-game pattern tracking.

How do I analyze a PGN file?

PGN, Portable Game Notation, is the plain-text standard for chess games, published in 1994 and readable in any text editor. Export it from Chess.com or Lichess from the game page, or download a whole archive at once, then paste or upload the file into any analysis board. A single PGN file can hold hundreds of games, which is the real advantage: analysing your last 25 to 50 games in one pass shows you which mistakes repeat, and a pattern usually needs at least three games before it is worth trusting.

Is engine analysis actually useful for club players?

Yes, but only for finding the big moments. Below master level, games are decided by blunders and missed tactics worth two pawns or more, not by the subtle 0.3-pawn inaccuracies engines love to flag. Use the engine to locate the three biggest evaluation swings in each game, understand the tactic or threat you missed at each one, and ignore the rest. Chasing engine-perfect play move by move teaches you very little. Understanding your three worst decisions per game compounds fast.

How many games should I analyze at once?

One game tells you what happened. A batch tells you what you do. Analysing a window of your last 25 to 50 games is the point where recurring weaknesses become visible, because a mistake type that shows up in three or more games is a habit rather than an accident. Below about ten games the sample is too noisy to draw conclusions from, and much past 50 you are mostly measuring an older version of yourself. Review individual games for the lesson, batches for the pattern.

Is Lichess or Chess.com analysis better?

They answer different questions. Lichess gives you unlimited free Stockfish evaluations, an analysis board with no paywall, and opening explorer data, which suits players who want to drive the engine themselves. Chess.com Game Review wraps the same kind of engine output in plain-language commentary and an accuracy score, which suits players who want to be told what went wrong, but the free plan limits you to one review per day. Neither tracks weaknesses across games, so pair either one with a batch review.