Baduk: Go AI, Tsumego & Online

From your first stone to your first dan. Play against a human-like AI that runs on your device, sharpen your reading with life-and-death problems, and test yourself online.

■ HUMAN-LIKE AI
• 24 levels from 20 kyu to 3 dan, with an estimated rank for each level.
• 9x9, 13x13 and 19x19, handicap games, Korean, Chinese and Japanese rules.
• Byo-yomi clocks (5, 10 or 20 minutes), position estimate, hints and undo.
• The AI runs on your device.

■ NEW TO GO?
• A quick question at the start sets your first AI level.
• Learn Go is free: liberties and captures, life and death, counting — you place the stones yourself.
• After your games the app suggests moving up or down a level.

■ PUZZLES AND STUDY
• More than 5,500 life-and-death problems in 6 levels, plus a daily problem.
• Classical problem collections, Edo-period master games with AI analysis, and a joseki dictionary.
• AI review after a game: win-rate graph, mistakes and blunders, better moves.
• Your own mistakes become drills that come back on a spaced schedule.

■ ONLINE PLAY
• Live games (10 minutes + 3 x 30 s byo-yomi) and correspondence games (48 hours a move, with a notification on your turn).
• Ratings per board size, rankings, monthly seasons and a weekly arena.
• Friend codes and challenges, spectating, rematches, report and block.
• If no opponent is found, you can play the AI for practice.

■ ALSO
• Daily check-in, missions and achievements earn hints and undos.
• Save, import and share games as SGF. Study reminders. Korean, English, Japanese and Chinese.

■ PURCHASES AND SUBSCRIPTIONS
Baduk Pro (monthly or yearly subscription, or lifetime) removes ads and unlocks unlimited undo, hints, AI review and problems. Hint & undo packs and the theme pack (8 extra boards and flat stones) are one-time purchases.
• Subscriptions are billed through Google Play and renew automatically until canceled. Manage or cancel in Google Play Payments & subscriptions.
• Terms of Use: https://oh-seungjin.github.io/privacy-terms/baduk/terms-en.html
• Privacy Policy: https://oh-seungjin.github.io/privacy-terms/baduk/privacy-en.html