Get Unlimited Game Reviews for Free. Analysis Should Be Free.

Every chess improvement guide, every coach, every GM who's ever given advice will tell you the same thing: review your games. It's the single highest-leverage activity for getting better at chess. Not puzzles, not openings, not watching videos — reviewing your actual games and understanding your mistakes.

So why does the largest chess platform in the world limit you to one game review per day on the free plan?

The Chess.com game review limit

If you play on Chess.com, you've hit this wall. You play 5 or 6 games in a sitting. You want to review them. You can review one. The other five? Pay $99/year for Diamond membership. Or just... don't review them.

This creates a weird situation where the players who need game review the most — beginners and intermediate players who are actively trying to improve — are the ones least likely to pay $99/year for it. And the ones who can afford it are often already strong enough to self-analyze.

Here's what Chess.com's free tier actually gives you:

• 1 game review per day — that's it. Play 10 games, review 1.
• Basic engine evaluation — you see the eval bar, but no explanation of why a move was bad.
• No AI coaching — just “this was a blunder” with no context about what you should have done or why.
• No pattern detection — you can't see if you keep making the same type of mistake across games.

To unlock unlimited game reviews on Chess.com, you need Diamond membership at $99/year (or $17.99/month). Even then, you get engine analysis but not the kind of coaching that explains your mistakes in plain language.

What about Lichess?

Lichess offers free analysis, which is great. It's open source, no limits, and the analysis is solid. But the analysis is engine-only — you get the eval bar and the best move, but no explanation of why your move was wrong or what you should think about differently next time.

For stronger players who can interpret engine output, Lichess analysis is excellent. But for the 800-1800 range where most players live, seeing that Stockfish preferred Nd5 over Nc3 by 0.4 pawns doesn't teach you anything. You need to know why Nd5 was better — that the knight creates pressure on f6, can't be challenged by a pawn, and supports a kingside attack.

Our take: chess game analysis should be free

We believe basic game analysis is too important to improvement to be locked behind a paywall. It's like charging someone to look at their own test results. The data is already there — the games are already played. Running Stockfish on them is computationally cheap. There's no reason this should cost $8/month.

That's why Chessiro offers free game reviews with no daily limit. Connect your Chess.com or Lichess account, and review as many games as you want. Every game gets full Stockfish 18 analysis with:

• Move classifications — every move labeled as best, good, inaccuracy, mistake, or blunder
• Accuracy percentage — see how accurately you played overall
• Evaluation graph — visualize how the advantage shifted throughout the game
• Opening detection — know what opening you played and how you deviated from theory
• Best move arrows — see what the engine recommended at every critical moment

All of this is completely free. No daily limit. No trial period. No “upgrade to see more.”

So what's not free?

We're not running a charity — we need to sustain the product. Here's how we think about it:

• Free: Game reviews with Stockfish analysis, move classifications, accuracy scores, eval graphs, opening detection. No daily limit. This covers the core analysis every chess player needs.
• Free (limited): AI Coach explanations (2 sessions/week) and Replay Mistakes puzzles (10/week). You get to experience the advanced features, just not unlimited.
• Pro: Unlimited AI coaching, unlimited Replay Mistakes, and everything else without limits. This is what funds Chessiro.

The idea is simple: the core analysis that every chess player needs to improve should be free. The advanced AI features that require significant compute — that's where the paid tier comes in. But you should never be in a position where you played a game and can't review it.

How Chessiro compares to other free chess analysis tools

There are a few options if you want free chess game analysis. Here's how they compare:

• Chess.com (free tier): 1 game review/day. Engine eval only. No AI explanations.
• Lichess: Unlimited free analysis. Engine eval only. No AI coaching. Great engine, no explanations.
• Chessiro: Unlimited free Stockfish 18 analysis. Move classifications, accuracy scores, eval graphs, opening detection. Plus limited free AI coaching that explains why moves were mistakes.

We're not trying to replace Lichess — if you want pure engine analysis and you can interpret it yourself, Lichess is excellent. What we add on top is the AI coaching layer that makes analysis accessible to players who don't speak “engine.”

How to get started with free game reviews

It takes about 30 seconds:

1. Go to chessiro.com and sign in with Google or email
2. Enter your Chess.com or Lichess username
3. Your recent games are automatically imported
4. Click any game to run a full Stockfish 18 review
5. See move-by-move analysis with classifications and accuracy

No credit card, no trial period, no “you've used your 1 free review today” popup. Just analysis.

You can also upload any PGN file directly — useful if you play on other platforms or want to analyze over-the-board tournament games.

Why this matters for chess improvement

Reviewing your games is how you actually get better at chess. Not by watching YouTube videos, not by grinding random puzzles — by looking at your own games and understanding where you went wrong. Every serious player does this. Every coach recommends it.

When game review is limited to one game per day, you skip it most of the time. You play 6 games, review 1, and the other 5 — including the ones where you probably learned the most from losing — just disappear. That's improvement left on the table.

We think this is how it should be. If reviewing your games is the best way to improve at chess, then everyone should be able to do it. Not just the people who can afford a premium subscription.