# A short, concise ruleset of Go

## The logical rules

1. Go is played on a 19x19 square grid of points by two players called black and white.
2. Each point on the grid may be either colored black, white or empty. A point P is said to contact a color C, if there is a path of orthogonally adjacent points of P's color from P to a point of color C.
3. Starting with an empty grid, the players have alternate turns, black first.
4. A turn is either a pass; or a move that does not generate a grid pattern identical to one that this player has generated previously.
5. A move consists of coloring an empty point with the player's color, then recolor all the opponent-colored points to empty which don't contact empty (called capture of opponent stones), and then recolor all the player's own-colored points which don't contact empty (called remove suicide stones).
6. The game is finished after two consecutive passes.
7. A player's score is the number of points of his color, plus the number of empty points that don't contact the opponent's color. Maybe for the advantage of beginning the game the other player gets a fixed number of points (called Komi).
8. The winner is the player with the greater score at the end of the game; if the scores are equal it is a draw.