qgo 2.1~git-20180413-1build1 (s390x binary) in ubuntu focal

 qGo is a computerized board on which you can play the game of Go
 against another player, view and edit smart-go files, and connect to
 Go servers on the internet. It can also interface with computer Go
 programs such as GNU Go that speak the Go modem protocol. Have a look
 at the cgoban package if you are interested in a Go client with less
 package dependencies.
 .
 See description of the gnugo package for a short description of the
 game.