On September 4th, 2008, during the FIT2008 conference, in Japan, Crazy Stone won a game against 4-dan professional player Kaori Aoba. The game was played with a handicap of 8 stones. It was the first time a computer won an official game against a professional player with such a small handicap.
Crazy Stone also won a 9x9 game with no komi against 9-dan professional player Wáng Míng Wǎn (O Meien)
Game record in SGF format