Shogi Lab: Sunfish Engine

koji ozono · Games

Free

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Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Oct 3, 2026
New version 2.0.4 → 2.0.5

- Added piece movement animations (smooth slide) - Adjusted the move sound to play at the same time as the animation finishes - Redesigned the matching screen with a simpler design - Fixed an issue where Upgrade briefly appears when launching the Pro version - Improved the response speed of the AI proxy button

In-app purchases · US

What this app sells inside itself, grouped by kind and priced for this storefront.

One-time purchases
Shogi Lab Pro $0.99

Screenshots

About

This is a shogi app powered by the full-featured Sunfish4 engine. With clear piece design and calm, intuitive controls, you can enjoy smooth gameplay from the opening to the endgame. It includes real-time evaluation during matches as well as game record replay and analysis features, allowing you to complete the entire flow from playing to reviewing within the app. Online matches with rankings are supported, and offline CPU matches are also available. Main Features ▪ In-Game Analysis (During Match) ・View evaluation values and graphs in real time. ▪ Thinking Time Visualization (During Match) ・Display thinking time on the move list. ・Long thinks are highlighted in red (top 5%) and yellow (top 15%). ▪ Key Move Detection (During Match / Analysis) ・Automatically highlights moves where the evaluation changes significantly. ▪ Game Record Analysis (Analysis) ・Replay, fast-forward, and rewind past games for review. ・Import KIF and CSA files for replay and analysis. ▪ Position Jump (Analysis) ・Instantly move to any position within the game record. ▪ Save & Resume (During Match) ・Pause a match and resume later. ▪ Adjustable CPU Strength (During Match) ・Set the difficulty level from practice to serious play. ▪ First/Second Move Selection (Start) ・Choose to play as Black or White. ▪ Take Back Move (During Match) ・Undo the last move. ▪ Legal Move Display (During Match) ・Show available moves to help prevent mistakes. ▪ Haptics & Animations (Controls) ・Smooth and responsive interaction. ▪ Online Multiplayer ・Supports ranked online matches. ・Offline CPU matches and local two-player mode are also available.

What's new · 2.0.5

- Added piece movement animations (smooth slide) - Adjusted the move sound to play at the same time as the animation finishes - Redesigned the matching screen with a simpler design - Fixed an issue where Upgrade briefly appears when launching the Pro version - Improved the response speed of the AI proxy button

Details

Developerkoji ozono
ReleasedJan 2026
UpdatedMay 2026
Version2.0.5
Size81.4 MB
RequiresiOS 17.6 or later
Age rating4+
LanguagesEnglish, Japanese
PriceFree
Categories GamesBoardStrategy
Bundle IDcom.ozn.dev.shogi.shogi