Surround the stones. Own the board.
Classic Go on 9×9, 13×13 or 19×19 — Chinese scoring with 7.5 komi and a byoyomi clock. Play the engine at two strengths, or pass & play on one screen.
9 · 13 · 19 boards
Chinese scoring · 7.5 komi
No login to play
Choose your modeTap a card to jump straight in.
How to playBlack first → surround → two passes end the game.
1Place a stoneOn any intersection of the grid — one per turn, black goes first.
2Capture by surroundingCut off every liberty of a group and its stones are yours.
3Mind ko & suicideYou can't repeat a ko right after taking one, and you can't fill your own last liberty.
4Pass to scoreWhen neither side can gain, both pass. Territory decides, plus 7.5 komi to white.