Sygo is a two player abstract strategy game created in 2010 by Christian Freeling. It is a variant of Go. Sygo is played on a 19x19 grid of lines. It differs from Go in that captured stones change colors instead of being removed from the board, similar to Reversi/Othello. Additionally, each turn, players may either place a new stone, or else grow all of their existing groups of stones by placing a new stone adjacent to each group, similar to Symple, another of Christian Freeling's games. The goal of Sygo is to control the most territory on the board as determined by the number of a player's stones on the board as well as empty points surrounded by the players stones. The game ends either when one player resigns or both players pass on successive turns.
