Black & White Go vs Go Challenger

Black & White Go — the strongest Go AI in your pocket. Powered by KataGo, the world's strongest open-source Go engine, built right into the app. Play and review games anytime, anywhere — fully offline. STRICTLY FAIR GAMES • 15 difficulty levels — from beginner to strong amateur • 9×9, 13×13 and 19×19 boards • Even games, nigiri, 2–9 stone handicap, free handicap placement • Pass, undo and resign supported • Games are saved automatically — resume anytime PLAY YOUR WAY • Play Black or White against the AI • Play face-to-face with a friend • Watch AI vs AI games and learn AI REVIEW — IMPROVE EVERY GAME • Full-game win-rate graph at a glance • Automatic mistake marking: blunder / mistake / inaccuracy • At every marked move, see the AI's recommended play on the board • Choose analysis depth (Fast / Standard / Thorough) — remembered for next time • Tap the graph to jump to any move, or step 10 moves at a time POSITION ANALYSIS • Estimate territory and influence while you play Available in Korean and English.

High-quality Life&Death application that is more fun and easy to understand with AI responding to all moves! It is a Go game that was created with the long-standing know-how and technology of the global Go site TYGEM. Improve your Go skills with carefully selected Life&Death quizzes every day. Characteristics of the game - PRO AI will respond to all your moves until you understand them. AI accepts all the wrong moves, so you can try indefinitely with your own thoughts. If you try multiple times, you'll be close to the answer. - There are approximately 5,000 high-quality Life&Death quizzes waiting for you. The quizzes are divided by "To kill" and "To live", so you can choose the quiz you want and try it. Also, each is divided into 7 levels of difficulty, so experience the quiz that fits your level right away. - A new quiz tailored to your Go level is recommended every day. Challenge your own Life&Death quizzes that change every day. Life&Death quizzes tailored to your level will upgrade your Go level further. - Compete with users all over the world Each quiz has a record of the number of challenges and success rates of users worldwide. If you succeed in a Life&Death quiz for the first time, you will remain the eternal successful challenger of the quiz. Try challenging quizzes with low success rates - How strong is my Life&Death level? You don't have to solve all the quizzes to know your level. Check your level in a short period of time with the level test. If you knew your level, all you have to do is boost your level. - Various Go stones and Go board skins If you're tired of the classic Go background, try changing the Go skin to suit your taste. There are many combinations of Go stones and Go boards, so find the best combination that makes you feel the best.