一手一世界

Play Go online

Play Go online

Choose a board size and time control. Then we find you an opponent.

Six short lessons cover liberties, captures, groups, passing, and scoring directly on the board.

Practice life and death, tesuji, capturing races, and endgame with verified positions.

Open a saved game and compare your moves with KataGo's suggestions.

With an account, you can see your rating, recent results, and saved games.

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