Oh, I have seen a windows task bar, even if Win2k was the last one I had to work with. And I just saw pictures of 7, 8 and 10 but never in real.
But was the "Start" button always called "go" in english Win versions? I never heard about it and only know "Start".
And the game is this one:
https://en.wikipedia.org/wiki/Go_(game)
It is more complex than Chess. Last week it was the first time that a computer won against one of the best players of the world, and thus it is everywhere in the media. And there are several programs for every plattform. I even got a good one for my Ataris.
So I thought perhaps there are some other GO players around who can quickly point me to the right place for Macs, as I got extremely frustrated yesterday.