For Xboard, it could set UCI but NewGG do not have the option 'UCI_Variant'
The value should be "xiangqi"
Xboard could load the NewGG game engine but display an international chess board.
So if the UCI_Variant option is added, I think it could be run with Xboard.
Greetings.
I am able to compile NewGG on Linux. On Linux, I am using these two GUI: Xboard and https://github.com/EterCyber/Sylvan/
For Xboard, it could set UCI but NewGG do not have the option 'UCI_Variant' The value should be "xiangqi"
Xboard could load the NewGG game engine but display an international chess board. So if the UCI_Variant option is added, I think it could be run with Xboard.