Features

Review with Arasan.

After the game, on your phone. No upload, no daily limit, no signal needed.

Only after the game.

Review opens from the Library once a game is saved as finished. Nothing on the recording screen can reach it.

Arasan goes through every move and marks the few that changed the game. You read those, not a wall of numbers.

10. Nxb512. O-O-O16. Qb8+

Morphy v Duke Karl and Count Isouard, Paris 1858. White's view, in pawns. The line is drawn for this page, not engine output.

Key moment, 3 of 3

16. Qb8+

The queen sacrifice that forces mate. After 16...Nxb8, 17. Rd8# ends it.

Played and best are shown side by side, with the engine's line to step through on the board.

Step through what Arasan suggests on the board, then try your own idea against it.

Choose depth or time per move. A whole game usually takes a minute or two.

Engine: Arasan, a strong chess engine by Jon Dart, running on the phone. Its network is inside the app, so nothing is downloaded.
When: Only on a game saved as finished, from the Library. Never from the recording screen.
Where: On your phone. The game is not uploaded anywhere and no signal is needed.
How much: No daily limit. Review every game of a congress on the train home.
Shows: The key moments, what was played, the engine's line and the evaluation in pawns, in words and numbers.
Settings: Depth or time per move, and how many lines to show.
Explains: What Arasan found, nothing more. Written explanations come later, only grounded in engine output.

Your games on your phone, a copy in your own cloud.