There are chess computers, but not yet any noteworthy Go computers (and hopefully there won't be usable Go computers anytime soon).

Written in response to physics professor Hans Duhm, who had asked if Collatz could deliver a lecture titled "Go from the Perspective of Game Theory" ahead of the 1988 European Go Congress in Hamburg. Quoted in Lothar Collatz zwischen 1933 und 1950 - Eine Teilbiographie (2019) by Ingo Althöfer, p. 21-22.