Development of a flexible and defensible position in an area of opposing forces, especially by means of contact plays and sacrifice tactics.

A Japanese go term adopted into English (forcing move) for a sente move that produces a certain effect and can then be abandoned without regret.

A weakness that is left behind in the opponent's position. Has been translated as flavor, aftertaste, and "funny business". Typically it can be exploited in more than one way.

A move that reduces a stone or chain of stones to one liberty. The stones with one liberty are said to be "in atari". An atari play that reduce one's own stones' liberties [..]

A race to fill in the liberties of two groups, neither of which can live independently. Also called semeai.

A group of stones that are directly adjacent along the lines of the board. The stones in a chain share liberties and live or die as a unit. Also string.

A play that joins two stones or chains into a single chain by connecting them along the lines of the board; or that makes it possible for them to be so joined even if the opponent were to play first; [..]

A move which separates two or more of a player's stones by occupying a point adjacent to them.

1) Any empty point adjacent to a stone; 2) a neutral point between established Black and White positions which does not count as territory for either player.

Inability to play at a tactically desirable point due to lack of liberties.