Go 9x9 (Baduk)

Record vs AI

Black moves first; players take turns placing stones on the intersections.
Surround an opponent's stones completely to capture them.
You cannot play a stone that would be captured immediately (suicide), and you cannot retake a ko right away.
The game ends when both players pass in a row. Your stones plus the empty points surrounded only by your stones are your score (area scoring). White gets 6.5 points of komi.
Dead stones left on the board count as alive, so capture them before the game ends.

Corners, then sides, then the center is the easiest way to build territory.
When a group is in atari (one liberty left), decide first whether to save it or give it up.