Done. Fun game.

I started with chess in 1963. Played many rapid games with a classmate every day after school. In 1966 we went to different universities, so that stopped. And I moved to Go. But since a couple of years I went back to chess and play rapid games online.

ps dng

done, nice medium to get me into the 12000 club

Did it, no green, no guess. Two places where I needed to keep many numbers in my head at once. 20.