# Lina Chess

> An offline chess lab that explains every move

Run Stockfish analysis, solve more than 50,000 tactical puzzles, study openings and review complete games, all on-device.

- Developer: CommonSource
- Category: Game
- Platforms: iOS, Android
- Minimum iOS: 15.6
- Official product page: https://commonsourcelab.com/en/apps/lina-chess

## Key experiences

### Go beyond the best move to understand why it works.

Stockfish 16 evaluates the position and candidate moves in real time. Learn the nine grades from Brilliant to Blunder, then connect opening ideas to concrete lines.

- Live board analysis with candidate moves and evaluation
- A guide to move quality from Brilliant to Blunder
- Opening ideas connected to playable lines

### Record the mistake, then turn it into the next puzzle.

Summarize accuracy and move grades after a game, then repeat patterns across more than fifty thousand tactical puzzles. Filter by theme and rating to target recurring weaknesses.

- A game review summarizing accuracy and move grades
- Tactical puzzle training directly on the board
- Puzzle filters that target themes and rating ranges

### Keep games, clock and board in one complete toolkit.

Reopen automatically saved PGN games, use tournament-style clocks for offline play, and customize the board, pieces, coordinates and analysis arrows to fit your study.

- A game history for returning to saved PGN records
- A two-sided clock from bullet through classical time controls
- Settings for board, pieces and analysis overlays

## Essential features

- **Live Stockfish analysis**: Read positions through an evaluation bar, best-move and threat arrows, and up to three candidate lines.
- **50,000+ tactical puzzles**: Filter by rating and motifs such as pins, forks and skewers to train the patterns that need work.
- **Detailed game review**: Grade every move on nine levels, inspect the advantage graph and replay turning points against the engine.

## Made for

- Beginners learning tactical fundamentals
- Club players reducing blunders and opening gaps
- Advanced players who need deep engine analysis

## Privacy and notes

The engine and game analysis run offline, with no account or personal-data collection required.

## Frequently asked questions

### Does it need an internet connection?

The engine and game analysis run fully offline, with no account or personal-data collection.

### Which engine powers the analysis?

Stockfish, surfaced through an evaluation bar, best-move and threat arrows and up to three candidate lines.

### Can I target specific weaknesses in puzzles?

Filter more than 50,000 puzzles by rating and motifs such as pins, forks and skewers.

## Download

- [App Store](https://apps.apple.com/us/app/lina-chess-offline-ai-puzzle/id6757314610)
- [Google Play](https://play.google.com/store/apps/details?id=com.commonsourcelab.chesstrainer)