●○ gobanGO AI LABAn ancient game. A new opponent.
THE INTERSECTION OF PLAY & ALGORITHMS

A little strategy.
A different kind of mind.

Take a seat. Choose an algorithm. Find your next move.

囲THE GAME OF GO
Your moveYou are playing black
9 × 9 BOARD
You BLACK0 captures
TO PLAY
vs
Minimax WHITE0 captures
AI
MOVE 0Chinese area scoring · Komi 6.5 · No suicide
Inside the algorithmA glimpse into your opponent’s last decision

Play your first stone to see the AI in action.

GAME OVER

You lost
A QUICK INTRODUCTION

Simple rules. Endless possibilities.

You play black and move first. Place a stone on an empty intersection. Stones connected horizontally or vertically form a group.

Liberties: adjacent empty intersections keep a group alive. A group with no liberties is captured. You cannot play a move that leaves your own group without liberties unless it captures opponents.

Repetition: a move cannot recreate an earlier board position (positional superko). Pass when you have no useful moves; two consecutive passes end the game.

Scoring: your stones plus empty territory surrounded only by your color count as your area. White receives 6.5 komi. Remove dead groups through play before passing; this app does not adjudicate dead stones or seki.

The AI lab: these are educational, browser-based opponents, not professional Go engines. Minimax uses a restricted candidate set; MCTS uses short rollouts. Larger boards are more challenging for both.