KataGo AI & Real-time Analysis

Check analysis scores from the world-class AI 'KataGo' in real-time during matches. With the evaluation graph and score display, you can always objectively grasp the advantage on the board.

Full-Screen 19x19 Board

Beautifully displays the 19x19 board on the entire screen, allowing for comfortable stone placement without zooming. Experience the atmosphere of an authentic Go board on a single smartphone.

Precise Visualization of Thinking Time

Displays thinking time for each move in the game record. Highlights long deliberations in red (top 5%) or yellow (top 15%), allowing detailed analysis of your rhythm.

Advanced Review & Automatic Scoring

Instantly executes precise score calculation using 'KataGo' after the endgame. With position jump and move-by-move navigation, post-game review is stress-free.

Online Matches & Rankings

Play real-time matches with players nationwide and aim for the top of the rankings. Compete your skills against users from all over the world.

Multi-stage Adjustment Lv.1–Lv.53

Finely select CPU strength from 53 levels. From practice to serious matches, it becomes the optimal play partner tailored to the player's level.

Support & Engine

For bug reports or feedback, contact us at:

[email protected]

Engine: KataGo (MIT License)
Optimized for iPad and Mac.

Privacy Policy

We prioritize protecting your privacy.

Online Features: Temporary identifiers are used for matchmaking and rankings.
Personal Data: We do not collect personal information such as names or email addresses.
Offline Support: CPU matches and local 2-player matches operate completely offline and do not transmit data.

Go Lab

Ultimate Match & Analysis