EasyGo - Katago AI Tsumego SGF

EasyGo for Android is a complete Go, Weiqi, and Baduk study tool, redesigned after 14 years to bring together play, study, and improvement in one powerful offline app. It offers a full-featured SGF editor, thousands of built-in problems, and advanced AI analysis, all without requiring an internet connection.

Play against on-device KataGo AI with human-style models and calibrated ranks for natural practice. Analyze any position with win rates, score estimates, and variations. You can start AI games from existing SGF files, review them like normal games, or continue from saved sessions. The app supports CPU, OpenCL, or optimized TFLite engines and lets you import your own KataGo models.

Sharpen your skills with over 2,400 built-in problems covering fundamentals, life and death, tesuji, joseki, and endgame. Daily Problems provide three challenges each day, while spaced repetition helps you retain knowledge. Interactive joseki practice guides you through valid variations for both colors. You can also create custom problems from any board position and manage separate profiles for different players.

The intuitive SGF editor supports full FF[4] format, visual node tree, and easy switching between edit and problem-solving modes. Batch import or export SGF and ZIP files, and share games seamlessly. With offline functionality, dark theme, tablet optimization, and customizable boards, EasyGo offers generous free access to every feature, with an optional one-time upgrade for unlimited use.