수담 vs Go Game Coach

Sit down at the board, and your teacher is already there. Sudam is a fully offline Go (Baduk) app with KataGo — the world's strongest open-source Go engine — built right into your device. No internet, no sign-up, no server. 1. World-class AI, fully offline The KataGo engine lives inside the app, analyzing and responding instantly without a network. Every calculation happens on your device — and only on your device. 2. 27 levels, from 18-kyu to 9-dan Find the opponent that fits you on a finely graded 27-step ladder. Handicap games from 2 to 9 stones, adjustable komi, your choice of Black or White, and scoring under Korean rules. 3. Teaching Games with AlphaGomi Your AI teacher AlphaGomi compares your move with the best move every single turn, explaining the type of move, why it works, and how the game is likely to unfold — in clear, friendly language. 4. Review — down to "why that spot" Step through your game move by move and spot the turning points on the win-rate graph. In Explore mode, replay the AI's recommended lines or try your own ideas and judge the position. 5. Go proverbs, right when they apply In moments like atari, cuts, life & death, or a big group in danger, the Ten Golden Rules and time-honored proverbs appear one line at a time — so the principles sink in naturally. 6. Daily tsumego and Rank Challenges Fresh puzzles every day reveal your strengths and weaknesses by theme — life & death, atari, cutting, and more. Rank Challenges are played on a Korean byo-yomi clock, one rank at a time, with no analysis and no hints — pure skill. 7. Game Insights (weakness report) Sudam looks across your games to find the mistakes you repeat out of habit, organizes them by game phase and move type, and links each key scene straight into review. 8. Progress tracking and backup Rank history, AI match records, and puzzle accuracy on one dashboard. Export to SGF and back up or restore everything as a single file. Reviews, daily tsumego, and daily free games are yours to enjoy — and one single purchase unlocks everything forever: unlimited Teaching Games, Game Insights, and no ads. No account needed; your purchase restores on any device with the same store account. All your data stays on your device, on both iPhone and iPad.

Go Game Coach teaches you to play Go — from your very first stone to real games on a full board. LEARN, STEP BY STEP 30 courses and 138 interactive lessons take you from "what is a liberty?" through good shape, life and death, capturing races, and counting the endgame. Every lesson is hands-on: you place the stones and the board answers. Nothing is a wall of text. AN OPPONENT THAT FITS YOU A 60-level ladder powered by a neural engine that runs entirely on your device. Level 1 plays gently and gives you chances. The upper levels will test a serious amateur. Move up a rung whenever you're winning comfortably. A COACH WHILE YOU PLAY Switch the tutor on and the app follows your game as it happens — warning you before a move that drops stones, naming the shape you just made, and showing where it would have played instead. It explains in plain language, not jargon. REVIEW AFTER THE GAME Step back through any finished game move by move and see where it actually turned. REAL GO, PROPERLY IMPLEMENTED 9×9, 13×13 and 19×19 boards. Chinese, AGA and Japanese rules, with adjustable komi and handicap games. Ko, seki and scoring all handled correctly. COMPLETELY OFFLINE No account. No ads. No tracking. No network connection — ever. The engine, the lessons and your progress all live on your device, so it works on a plane, on the subway, anywhere. Levels 1–20 are free to play, with the tutor free through level 10. One optional purchase unlocks all 60 levels and the tutor at every level. No subscription.