HJJ GO｜All vs Chess Notation Fluency

HJJ GO is the largest Go learning app in Taiwan, co-developed by professional Go player Joanne Missingham and Goer, an AI and Go education technology team. This all-in-one platform offers comprehensive Go learning resources, from beginner lessons to near-professional training, as well as powerful AI sparring tools. Designed for learners of all levels, HJJ GO makes it easy for even complete beginners to get started. With our exclusive GOER AI training system and the upgraded Character Match mode, you can enjoy a smarter, more engaging learning experience than playing with real opponents—alongside Go enthusiasts from around the world. Top 5 Features of HJJ GO: - Character Match Challenge a variety of AI characters, each with unique dialogue and personalities. Choose your opponent based on your current level and enjoy fun, immersive games. - GOER AI Sparring System Get real-time move suggestions and personalized game reviews tailored to your skill level. Identify mistakes and improve with targeted feedback. - Interactive Video Lessons Learn Go at every stage with engaging video content. Practice during and after class with in-lesson quizzes and post-lesson exercises—learn, apply, and improve in one seamless flow. - Mock Exams Access official-style practice tests with detailed score analysis. Prepare confidently for your real certification with unlimited practice and clear insights into your progress. - Learning Records & Progress Tracking Track your learning history and set goals and build a personalized study plan to steadily level up your Go skills. Note: Some features require course purchases or additional subscriptions.

Make chess notation feel natural. Chess Notation Fluency helps you read and write Standard Algebraic Notation (SAN) through focused practice with real game sequences. TRAIN IN BOTH DIRECTIONS • Watch a move on the board, then enter its notation. • Read a notation prompt, then play the move. • Use Mixed practice to alternate naturally between the two skills. PRACTICE YOUR WAY Choose White or Black, type answers or use multiple choice, begin in the opening, middlegame, or endgame, and select a quick session or a complete game. Exercises retain the surrounding moves so you practice notation in context—not as isolated flash cards. LEARN FROM YOUR RESULTS Track first-try accuracy, attempts, response time, revealed answers, notation features, mistake patterns, and recent sessions. START FREE. EXPAND ONCE. Every practice mode works with two included starter games. An optional one-time Full Game Library purchase unlocks 5,000 curated games for offline practice and lets you import your own PGN games. One purchase unlocks the library on iPhone, iPad, and Mac and supports Family Sharing. There are no subscriptions or ads. PRIVATE AND AVAILABLE Practice history and imported games stay in app-managed storage and synchronize through your private iCloud storage when available. Downloaded content works offline. Chess Notation Fluency has no developer account system and collects no personal data. Available on iPhone, iPad, and Mac.