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This summary selects a two-player even AGA game on a 19-by-19 grid, initially empty. Black plays first and turns alternate. Place a stone on an empty intersection, including edges and corners; stones do not make ordinary moves after placement.

Agree on the counting method before play; this entry selects the area method permitted by AGA rules. Under current AGA even-game compensation, White adds 7.5 points. The greater adjusted final score wins. Without prior agreement on counting, AGA defaults to territory counting.

Stones of the same color form a string through horizontal or vertical adjacency only. Diagonal contact does not connect them. Orthogonally adjacent empty intersections are liberties shared by the entire connected string.

After a play, remove every opposing string left without liberties. Those stones become prisoners. One play can capture several separate opposing strings at once.

After removing opposing strings captured by the play, the string containing the newly played stone must still have a liberty. Otherwise the move is illegal self-capture. A play into an apparently surrounded point can therefore be legal if capture first creates liberties.

AGA uses situational superko: a play must not recreate an earlier whole-board position with the same player to move. This reaches beyond immediate recapture and differs from positional superko, which ignores whose turn it is. Passing is always legal.

Instead of placing a stone, pass and hand the opponent one of your stones as a pass stone, added to their prisoners. If the opponent continues playing, the player who passed may subsequently play again.

Two consecutive passes normally begin the ending procedure. Agree on the status of all strings, then remove mutually agreed dead stones as the opponent's prisoners. One player's assertion alone does not authorize removing a disputed string.

If status remains disputed, resume play with the opponent of the last passer moving first. Agreement ends the game; if each player passes twice in succession during the unresolved procedure, all remaining stones are deemed alive. White must make the final move, adding a pass and pass stone if necessary.

Count area as living stones on the board plus empty territory entirely surrounded by that color. Neutral empty regions touching living stones of both colors belong to neither side. Do not add prisoners separately under area counting. Add White's 7.5 compensation and compare totals; handicap compensation is outside this summary.