Lina Chess:Offline AI & Puzzle

🚀 Master Chess with LINA CHESS – Powered by Stockfish
Take your chess game to the next level with LINA CHESS! We provide everything you need to go from beginner to master.

🌟 KEY FEATURES
🇺🇳 7 New Languages
German, Russian, French, Spanish, Japanese, Chinese, and Portuguese now supported.

🧠 Real-Time Engine Analysis
Get instant feedback on every move with the Stockfish 16 engine.

Live Evaluation Bar: See who is winning at a glance with precise centipawn scores and mate indicators.

Visual Hints: Green arrows 🟢 show the best moves, while red arrows 🔴 warn you of opponent threats.

Multi-Line Analysis: View up to 3 candidate moves simultaneously to understand deep nuances.

⚙️ Customizable Depth (NEW): Adjust the engine's search depth based on your device specs to optimize battery life or maximize calculating power.



⚔️ Revolutionary Play Against AI (NEW)
Experience ultimate flexibility. Our dynamic AI adapts instantly to how you want to play and learn.

🔄 In-Game Mode Switching: Playing a local match and got stuck? Instantly hand the board over to the AI at that exact turn, or switch back to a human match at any moment.

🎯 Adaptive AI Skill Levels: Select the perfect AI difficulty tailored to your strength, from a casual warmup to a master-level challenge.

⚡ Rock-Solid Stability: Highly optimized architecture ensures ultra-smooth gameplay without lag or interruptions.



📚 Opening Master & FSRS Quizzes (NEW)
Don't just memorize lines—master the early game with a scientifically proven learning system.

📖 Opening Guides & Alternatives: Study critical theory with move-by-move explanations and alternative variations for major openings.

🧠 FSRS Spaced Repetition: Powered by the advanced FSRS algorithm (similar to Anki). The system automatically tracks your quiz mistakes and schedules smart reviews for flawless long-term retention.



📊 Smart Move Grading & Advanced Review (NEW)
Understand your play with our 9-tier classification system and newly upgraded review tools.

💎 Move Quality Badges: Instantly spot Brilliant, Great, Best, Excellent, Good, Inaccuracy, Mistake, Miss, and Blunder moves during your review.

📈 Advantage Graph (NEW): Visualize the flow of the entire match. A detailed evaluation graph shows positional swings so you can find the exact turning point instantly.

⏪ Resume from Any Move (NEW): Pick any specific move from your game history and instantly restart the match against the AI from that exact position to test better alternatives.



🧩 50,000+ Tactical Puzzles
Sharpen your tactical vision with a massive database of over 50,000 puzzles.

Targeted Training: Filter puzzles by rating (800–3000+) to match your skill level.

Theme Selection: Practice specific motifs like Forks, Pins, Skewers, Discovered Attacks, and Mates.

Progress Tracking: Watch your puzzle rating climb as you improve!



📝 Game Management & History
Auto-Save & Stats: Every game is automatically saved in PGN format with detailed accuracy percentages (%).

Opening Explorer: Automatically detect and display opening names as you play or review.



⏱️ Professional Chess Clock
Supports Bullet, Blitz, Rapid, and Classical time controls with custom increment/delay settings.

Haptic feedback for a realistic, tactile touch experience.



🎨 Customization & Privacy First
Sleek UI: Dark Mode, multiple board colors, and piece sets optimized for Portrait and Landscape modes.

✈️ 100% Offline Capable: The engine runs completely locally on your device for lightning-fast analysis anywhere.

🔒 Total Data Privacy: No accounts, no sign-ups, and no data collection. Everything stays securely on your device.



Why LINA CHESS?
👶 For Beginners: Learn fundamentals, solve simple tactics, and master basic openings.

♟️ For Club Players: Eliminate blunders, visualize positional swings, and build a solid repertoire with FSRS.

🏆 For Experts: Dive into deep, customized multi-line analysis with a world-class engine running on your local hardware.