scalachessgui is a chess graphical user interface that supports Chess960 and several other chess variants

it is written in Scala, however it is packaged in a so called fat jar file that contains all its dependencies, therefore you can run it under Java 8+ without having to download the Scala language

to run the progam

1) make sure that the latest version of Java is installed on your computer

2) download the zip file and unzip the repository, then

- in the root directory of the repository double click on 'scalachessgui.jar'

or

- open a console window, cd to the root directory of the repository, and issue the command 'java -jar scalachessgui.jar'