Shogi Lab: Sunfish Engine

Engine Analysis & Match

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

Experience Shogi at its finest, powered by the high-performance Sunfish4 engine. Featuring clean piece designs and a focused, intuitive interface, this app provides a seamless experience from the opening move to the final checkmate. Track your progress with real-time evaluations, replay your matches, and master the game—all within a single app. Key Features ▪ Real-Time Analysis (During Match) Monitor evaluation values and visual graphs as you play. ▪ Thinking Time Visualization See exactly how much time was spent on each move in the history list. Critical Phase Highlights: Thinking times in the top 5% are marked in red, while the top 15% are highlighted in yellow. ▪ Key Move Detection Automatically identifies and highlights moves that significantly impact the game's evaluation during both matches and analysis. ▪ Comprehensive Record Analysis Replay, fast-forward, or rewind your past games for deep review. Import KIF and CSA files for replay and analysis. Position Jump: Instantly skip to any specific turn within a game record. ▪ Performance & Customization Save & Resume: Pause your match at any time and pick up exactly where you left off. Adjustable CPU Strength: Tailor the engine's difficulty to suit your needs, from casual practice to intense competitive play. Color Selection: Choose to play as Sente (Black) or Gote (White) from the start. ▪ Intuitive Controls Undo Move: Quickly take back your last move if you make a mistake. Legal Move Display: Visual cues show all available moves to help prevent illegal plays. Haptics & Animations: Enjoy a highly responsive and tactile gaming experience. ▪ Game Modes Online Multiplayer: Compete in ranked matches against players worldwide. Versatile Offline Play: Challenge the CPU or use the local two-player mode to play with a friend on a single device.

Ratings & Reviews

  • This app has not received enough ratings or reviews to display an overview.

- Added support for importing KIF / CSA game record files - Added replay and analysis support for imported game records - Adjusted parts of the UI - Fixed minor issues

Version 2.0.4

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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

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

Information

Provider
  • koji ozono
Size
  • 81.4 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+
In-App Purchases
Yes
Copyright
  • ©2026 Koji Ozono
  • Developer Website
  • Privacy Policy
  • Licence Agreement

    • More by koji ozono

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