EasyGo Pro-Tsumego, SGF editor: iPhone vs Android

V1.9 Added WiFi transfer, supports TYGEM(.gib) game format, and you can download TYGEM user games directly within EasyGo.
Version 1.8: Supports sharing games, problems on EasyGo server, and print problems.
Version 1.7.2: Introduces new Joseki mode.
Version 1.7: Added favorites, tag support, and Fuseki search.

EasyGo is a multi-function go software designed to help you improve your go skills and enjoy the go game:

1. Extensive problems bundled
EasyGo has total 2400 problems bundled ranging from basics, life and death, tesuji and endgame. And the 893 problems on life and death have extensive variations built in to respond to all of your possible moves.

2. A lot of ways to study problems

• Problem Practice - Sort problems by total tried times, wrong times, and win rate or shuffle problems. Random swap color and rotate board. If the opponent have multiple variations, you can tap the alternate move mark to switch to that variation.

• Problem Test - Take standard test(20 problems in 10 minutes) or custom test, in which you can customize the total problem number, test time. During problem test, the restart, try, show solution button are disabled. The standard tests for the bundled problems are integrated with game center leaderboard. Test history is saved automatically. And you can review all the problems answered incorrectly later.

• Spaced Repetition System - EasyGo includes a spaced repetition system (SRS) to help you study go problems more effectively. Basically, it works like this: you are shown a problem and you choose “Fail”, “Hard”, or “Easy” according to how well you know it. The system will automatically present the problem again for review in the future. That is, EasyGo works like a flashcard application.

3. Game records browse/edit/replay
EasyGo is also a SGF editor, supporting most of commonly used SGF FF4 properties, and features a node tree view, a variation table. You can use EasyGo to record your own games, create your own problems, and switch to problem mode to test at anytime.

4. Easy import/Export
You can zip all your sgf files and transfer to EasyGo via iTunes file sharing. EasyGo will maintain the original folder structures in the zip file. You can also download sgf/zip files from mobile safari and import to EasyGo easily. EasyGo will be installed to handle SGF/ZIP files, and can import files from any mobile app supporting Open-In(such as Mail, Dropbox).

More features:
• Supports browse your games/problems in list or grid view
• Auto detect problems and normal games
• Sort games by black name, white name, game date, game name
• Bookmark system problems to user library, add any game to favorites, and assign multiple tags to game
• Supports comment edit, add black, add white, add triangle, square, remove node tree, insert node, etc.
• Create a problem by crop part of the current board position
• Auto replay, speed can be adjusted
• Two finger swipe to toggle full screen mode(iPhone and iPad full screen landscape

V1.9 Added WiFi transfer, supports TYGEM(.gib) game format, and you can download TYGEM user games directly within EasyGo.
Version 1.8: Supports sharing games, problems on EasyGo server, and print problems.
Version 1.7.2: Introduces new Joseki mode.
Version 1.7: Added favorites, tag support, and Fuseki search.

EasyGo is a multi-function go software designed to help you improve your go skills and enjoy the go game:

1. Extensive problems bundled
EasyGo has total 2400 problems bundled ranging from basics, life and death, tesuji and endgame. And the 893 problems on life and death have extensive variations built in to respond to all of your possible moves.

2. A lot of ways to study problems

• Problem Practice - Sort problems by total tried times, wrong times, and win rate or shuffle problems. Random swap color and rotate board. If the opponent have multiple variations, you can tap the alternate move mark to switch to that variation.

• Problem Test - Take standard test(20 problems in 10 minutes) or custom test, in which you can customize the total problem number, test time. During problem test, the restart, try, show solution button are disabled. The standard tests for the bundled problems are integrated with game center leaderboard. Test history is saved automatically. And you can review all the problems answered incorrectly later.

• Spaced Repetition System - EasyGo includes a spaced repetition system (SRS) to help you study go problems more effectively. Basically, it works like this: you are shown a problem and you choose “Fail”, “Hard”, or “Easy” according to how well you know it. The system will automatically present the problem again for review in the future. That is, EasyGo works like a flashcard application.

3. Game records browse/edit/replay
EasyGo is also a SGF editor, supporting most of commonly used SGF FF4 properties, and features a node tree view, a variation table. You can use EasyGo to record your own games, create your own problems, and switch to problem mode to test at anytime.

4. Easy import/Export
You can zip all your sgf files and transfer to EasyGo via iTunes file sharing. EasyGo will maintain the original folder structures in the zip file. You can also download sgf/zip files from mobile safari and import to EasyGo easily. EasyGo will be installed to handle SGF/ZIP files, and can import files from any mobile app supporting Open-In(such as Mail, Dropbox).

More features:
• Supports browse your games/problems in list or grid view
• Auto detect problems and normal games
• Sort games by black name, white name, game date, game name
• Bookmark system problems to user library, add any game to favorites, and assign multiple tags to game
• Supports comment edit, add black, add white, add triangle, square, remove node tree, insert node, etc.
• Create a problem by crop part of the current board position
• Auto replay, speed can be adjusted
• Two finger swipe to toggle full screen mode(iPhone and iPad full screen landscape

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

🎉 12 languages, plus updated KataGo engines and models!

✨ What's New:
• Added French, German, Russian, Spanish, Vietnamese, Italian, and Brazilian Portuguese
• Back up and restore your library and SRS progress
• Create tags for problems and games
• Preview, drag, and release moves in AI Play
• Mark bad moves in variation trees
• Updated KataGo AI engines and models
• More editor and board options

🐛 Fixes:
• Fixed HumanSL crashes, AI overlay settings, and double-tap zoom