Yes. Game review is free, with no account and no limit on how many games you analyse.

I have used my free Chess.com Game Review for the day. What now?

Open the same game here instead. Type rv in front of chess.com in the game's address: chess.com/game/live/12345678 becomes rvchess.com/game/live/12345678, and a full review builds itself. There is no daily cap because the engine runs in your browser rather than on a server.

How do I review a Chess.com game?

Type rv in front of chess.com in a saved live, daily, or computer game link, paste the link into the import box, or look the game up by Chess.com username.

How do I review a Lichess game?

Paste the game link into the import box. Any Lichess address works: the plain lichess.org/abcd1234 form, the longer one your own games get, and the /white and /black variants.

Which engine does the analysis?

Stockfish 18, compiled to WebAssembly. Analysis stays inside your browser. Completed games are contributed only if you explicitly enable the de-identified research option.

Can I analyse a single position instead of a whole game?

Yes. Open the sandbox, set the position up by dragging pieces or pasting a FEN, and Stockfish evaluates it live as you play both sides, with the best moves drawn on the board.

Can I review a PGN without an account?

Yes. Paste the PGN into the import panel and the review starts on its own. No sign-in is required; game contribution is off by default.

King's Indian Defense: Fianchetto Variation: Moves, Plans & Analysis

The position

What King's Indian Defense: Fianchetto Variation puts on the board

Material is level, with black to move.

White has central pawns on d4.

White can still castle either side; Black can still castle either side.

White’s plan

What White is trying to build

Use the broad pawn centre to gain queenside space or break with e5.

Meet a kingside attack with concrete central or queenside play.

Black’s plan

How Black challenges it

Attack the centre with …e5 or …c5, then play on the wing the locked centre points toward.

Keep the dark-squared bishop active on the long diagonal.

The idea

The tactical pattern to recognise

…f5–f4 can open lines near the white king.

A locked centre often creates opposite-wing races rather than quiet manoeuvring.

The mistake

What to check before committing

Starting the wing race before the centre is fixed.

Trading the dark-squared bishop without a concrete gain.

Continue

Choose the next book move

Preview a move to see the resulting position and the idea behind it. Select it to continue on the same board.