Free beginner course
From placing your first stone to captures and territory on 9×9, learned by playing.
Read more10,000+ problems
Sorted by theme, from atari to life and death, with layered hints and explanations.
Read moreKataGo on your phone
A state-of-the-art engine that runs on your device, not a server. Works offline.
Read more18 kyu to amateur 4 dan
22 levels that make the mistakes a real player at that rank makes.
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Why Go AI exists
My son started learning Go at seven. One lesson a week at the dojo, and he wanted to keep practising at home, but I could not find an app I was comfortable handing him. Sign-in walls, ads, recurring subscriptions. So I wrote this one.
No account. No ads. 9×9, 13×13 and 19×19 boards, with game review and a win-rate graph.