Macroscopic understanding of the situations in GO

GO or officially called IGO is a game with vaster search space than chess. A fuzzy approach is applicable to macroscopic understanding of situations in open game or middle game of GO. "Atsumi" is a complex concept used to decide a next move strategically. We made an system FOG (fuzzy oriented GO) system and examine a fuzzy approach to understand the "Atsumi" concept and strategy.<>