Go Lab: AI Baduk KataGo Engine

Play & Analyze with KataGo AI

$0.99 · Designed for iPad. Not verified for macOS.

Built-in top-class model. No additional model purchase required. A Go app for 9x9, 13x13, and 19x19 boards, featuring the powerful Go AI KataGo plus online play and rankings. It includes in-game position analysis, game review, and a tsumego mode with 347 problems from the classic Xuanxuan Qijing. Play, solve, review, and analyze—all in one app. Main Features - Built-in top-class model: b18c384nbt via CoreML. No additional model purchase required. This top-class model excels on 19x19 and powers candidate moves, evaluation, territory prediction, and game analysis. - Tsumego mode: 347 problems from Xuanxuan Qijing. Includes problem and solution replay modes, plus progress tracking (cleared count, today's solved count, streak). Solutions can be replayed automatically. Filter by move count or status (uncleared/cleared). - Territory prediction: KataGo predicts territory in real time on the board. Understand black and white territory intuitively while playing or reviewing. - Online play: Play real-time games with players worldwide. - Win leaderboard: Rankings based on total wins. - Full-screen support: Play in standard view or a beautiful edge-to-edge board (ideal for 19x19). - Real-time analysis: Check win-rate graphs and evaluation values during games. - Candidate moves: KataGo shows the top 10 moves in real time with win-rate and position predictions. Feel the meaning of each move and the excitement of Go. - Thinking time visualization: See how long each move took. Long thinking periods are highlighted in red (top 5%) and yellow (top 15%). - Game review guide: Moves that greatly changed the position are highlighted with a red background, making mistakes easy to spot. - Game history analysis: Study past games with intuitive controls: play, rewind, or fast-forward. - SGF import: Import external game records by selecting a file or pasting text, then add them to your game history. - Instant move jump: Tap any move in the game record to jump directly to that position. - Save and resume: Games are saved automatically, so you can resume right where you left off. - Adjustable CPU strength: Levels range from beginner practice to pro-level challenges. - UNDO: Easily take back the last move and try a different strategy. - Haptics and animations: Refined haptic feedback and smooth visual effects for a premium feel. - Full offline support: CPU games and local 2-player games work completely without an internet connection. - Position graph breakdown: The position graph shows values like '●14 / ○9 / +5.4' with black and white territory breakdowns, updated in real time after each move. Official Website: https://vlabos.com/go/

  • This app’s overall rating was recently reset.

【New Features】 - Added the b18c384nbt model with CoreML support. You can select it in Settings (b6c96 / Metal also available). - You can now adjust evaluation and candidate move visits (search depth) in Settings. 【Improvements】 - Other minor adjustments.

The developer, koji ozono, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    koji ozono
    Size
    188.7 MB
    Category
    Board
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • iPad
      Requires iPadOS 17.6 or later.
    • Mac
      Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
    Languages
    English and Japanese
    Age Rating
    4+
    Copyright
    ©2026 Koji Ozono