color and making them the capturing player's own rather than removing them from the board. If the placement of a stone results in the player's own group losing all its liberties then the move is referred to as "suicide" and is illegal. Another move must be chosen or the player must pass their turn. Because of Sygo's capture protocol, certain gameplay elements found in Go such as Ko and snap-back do not occur in Sygo. Scoring When one player resigns, or both players pass their turns successively, Sygo ends and the game is scored. A player's score is determined by the number of their stones on the board as well as the vacant points entirely surrounded by their stones. Unlike Go, there is no Komi to compensate for a second player disadvantage. Trivia Sygo can be played online against the AiAi program. Designer Christian Freeling calls Sygo "Go on speed," as the group growing mechanic causes the game to end in fewer turns than Go. Sygo has a game complexity of ~10^540. See also Symple References Abstract strategy games Go variants Board games