EasyGo - Katago AI Tsumego SGF

From the creator of EasyGo for iOS, EasyGo for Android is a complete Go, Weiqi, and Baduk study app redesigned after 14 years to help you play, study, solve, and improve.

Whether you're reviewing games, playing against AI, tackling tsumego, or learning joseki, EasyGo brings everything together in one powerful offline tool.

1. NEW: OFFLINE AI PLAY & ANALYSIS
Play and review with on-device KataGo AI. No server required.

• Play AI games offline with KaTrain-style calibrated ranks and human-style models for natural practice at different strengths
• Analyze positions with candidate moves, win rates, score estimates, territory estimates, and variations
• Start AI play from existing SGF files, review AI games like normal SGFs, and continue from saved AI sessions
• Use the bundled lightweight model, download curated models, or import your own KataGo-compatible model files
• Choose CPU, OpenCL, or optimized TFLite KataGo engines

2. MASTER GO, WEIQI & BADUK WITH PROBLEMS & STUDY TOOLS
Sharpen your skills with 2,400+ built-in problems covering fundamentals, life and death (tsumego), tesuji, joseki, and endgame techniques.

Practice with built-in collections, imported SGF problems, or problems you create from game positions.

With 893 life-and-death problems featuring extensive variations, you'll explore many responses and build deeper understanding.

• Daily Problems: Build a consistent training habit with three problems each day: Easy, Medium, and Hard.
• Problem Practice: Customize sessions by attempt count, mistake history, or success rate. Add variety by randomizing color and board orientation.
• Spaced Repetition System (SRS): After solving a problem, rate it as Fail, Hard, or Easy, and EasyGo schedules it for review like smart flashcards.
• Interactive Joseki Practice: Go beyond rote memorization. EasyGo guides you through valid joseki variations for both Black and White.
• Local Profiles: Keep separate problem stats, SRS progress, daily state, and recent activity while sharing library content.

3. FULL-FEATURED SGF EDITOR
Record games, create problems, review professional matches, or study AI games with EasyGo's intuitive SGF editor.

• Full SGF FF[4] support
• Visual node tree for easy navigation
• Instantly switch between edit mode and problem-solving mode
• Split a game from a variation point into separate games
• Create a problem from the current board position, using the full board or a selected area
• Replay mode, full-screen mode, markup tools, comments, setup stones, and node-tree editing

4. SEAMLESS IMPORT & EXPORT

• Batch import SGF or ZIP files
• Open SGF files from other apps
• Share one or multiple games as SGF/ZIP files
• Save and export compatible AI analysis data in SGF files

5. MORE FEATURES TO LOVE

• Works offline, including Daily Problems and on-device AI
• Modern, responsive interface with full Dark Theme support
• Tablet-optimized with automatic layout selection
• Practice alternative variations for any problem
• Organize collections with folders and batch operations
• Browse in list or grid view, sort by player/date/title, and favorite items for quick access
• Customize your board with different backgrounds and stone textures, or add your own

EasyGo offers generous free access to every feature, with an optional one-time upgrade for unlimited use. No subscriptions.