Chess Lab: Arasan AI Engine
koji ozono Games iPhoneiPadiPod touch
Chess Lab: Arasan AI Engine is a free Games app for iPhone and iPad by koji ozono. Requires iOS 17.6. Updated October 12, 2026.
- Price
- Free
- on the App Store
- Size
- 60 MB
- Age 4+
- Updated
- Oct 12
- 2026 · v2.1.4
Screenshots
About Chess Lab: Arasan AI Engine
Chess Lab: Arasan Engine combines a world-class chess engine with a beautiful, intuitive interface. Whether you are a beginner looking to improve or an advanced player seeking serious analysis and competitive matches, this app brings everything together in one place. ▪ Play Instantly with “Web Invite” • No need to ask friends to download the app or create an account. • Generate an invite link, send it, and they can join instantly from any smartphone or PC browser. ▪ Versatile Game Modes • Online Multiplayer: Compete against players worldwide and climb the global leaderboards. • Web Invite Play: Seamless private matches via URL. • Offline CPU Battles: Train against the powerful Arasan with 30 adjustable strength levels. • Local 2-Player: Play face-to-face on a single device. ▪ In-Depth Analysis & Replays • Powered by Arasan: Built-in robust UCI engine delivers highly accurate evaluations and best-move calculations. • Real-Time Evaluation: Monitor the advantage bar and centipawn score/graph during your game. • Interactive History: Replay matches with step-by-step playback, fast-forward, and instant position jumping. • Visualized Insights: Automatically highlights significant evaluation drops (blunders) and color-codes long-thinking moves (Red/Yellow). • PGN Import: Import external game data (PGN). ▪ Premium Board Experience • 2.5D & 2D Views: Switch between an immersive 2.5D perspective and a classic flat board. • Assistive Highlights: Clearly displays legal moves, captures, and checks to help prevent mistakes. • Full Promotion Support: Choose Queen, Rook, Bishop, or Knight when your pawn reaches the final rank. • Suspend & Resume: Automatically saves unfinished games so you can continue later. • Tactile Feedback: Smooth animations paired with high-quality haptics for a satisfying feel.
What’s new
Version 2.1.4 · Updated October 12, 2026
Internal improvements and minor adjustments.
App privacy
The developer, koji ozono, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Advertising Data
Used for: Third-Party Advertising
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data, Performance Data
Used for: App Functionality
Alternatives to Chess Lab: Arasan AI Engine
Looking for apps like Chess Lab: Arasan AI Engine? Here are 6 similar apps on the App Store. The highest rated is 8bit Chess (5.0/5), and all 6 are free to download.
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8bit Chess
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Chess.ai
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ChessIconic - Learn & Analyze
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ChessMate - Master Chess
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TacticSnap: Chess Scanner
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Chess2026
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Chess Lab: Arasan AI Engine | – | Free | October 12, 2026 | |
| 8bit Chess | 5.0 / 5 (3) | Free | Jun 22, 2026 | Compare |
| Chess.ai | – | Free | May 5, 2026 | Compare |
| ChessIconic - Learn & Analyze | 5.0 / 5 (1) | Free | Mar 22, 2026 | Compare |
| ChessMate - Master Chess | – | Free | Sep 11, 2026 | Compare |
| TacticSnap: Chess Scanner | 5.0 / 5 (1) | Free | Jul 27, 2026 | Compare |
| Chess2026 | – | Free | Apr 2, 2026 | Compare |