Every feature, A to Z

Analysis board

A free board with a strong engine: set up positions, try moves, see the best lines and a rating for each move.

All sections

Open Learn, Analysis board. It is a free playground that works offline once the engine has loaded.

The analysis board

Play any moves for either side. Every move gets a label (Best, Good, Mistake and so on) from the engine.
See the engine lines: the best continuations, with the evaluation (positive is better for White). Turn the engine on or off, and raise the depth for a closer look.
Load a position (FEN), a game (PGN) or a chess.com game link.
Go back and forth, make variations and keep the tree.
Practise this position against the coach from any point.
Draw arrows and circles to mark ideas.

Think first, then check. Write down the moves you want to look at before you turn on the engine.
Ask the engine “why not?” for the moves you rejected.
Use it for your own opening ideas: try a new line, see the evaluation, then add it to the lines trainer.

Tip: at higher levels the engine shows what works. Understanding why is your job: always write down a plan in words.

chessGM is not affiliated with Chess.com, Lichess or Stockfish; they are named only to say what the app can read or compare with.

Want a game or a realtime app built this way?

We design, build and run games and realtime platforms end to end: apps, servers, stores and operations.