DEFINITIONS

In this rules, "adjacent" always means orthogonally adjacent.

A group is a set of like-colored, adjacent stones.

A liberty is an empty point adjacent to a group. A false liberty is an empty point which is adjacent to at least one stone of each color and no empty points. Liberties which are not false are true.

PLAY

Starting with Black, the two players, Black and White, take turns placing stones of their color on empty points of the board, one stone per turn.

After a placement, all enemy groups with no true liberties are flipped, i.e. all the stones in them are replaced with stones of the player's color, after which the turn ends.

At the end of a turn, every group on the board must have at least one true liberty. Otherwise, the move is illegal and the player must choose another one.

Players can pass their turn at any moment. When both players pass in succession, the game ends, and whoever owns the most stones on the board wins.

Note: Refer to included "Loose.pdf" for further details.