H. G. Muller wrote on Fri, Nov 20, 2020 09:57 AM UTC:
For some reason the Diagram does not recognize the keyword 'royal' in the line royal=8. (And as a consequence considers the Rex the only royal piece.) I suspect there is some unprintable character in front of it, like <tab> or <cr>, because when I copy-paste your diagram description from the Page Source to a page on my own computer, everything works fine. (The Diagram script does strip leading spaces.)
Just delete that line, and retype it by hand, and it should work.
For some reason the Diagram does not recognize the keyword 'royal' in the line royal=8. (And as a consequence considers the Rex the only royal piece.) I suspect there is some unprintable character in front of it, like <tab> or <cr>, because when I copy-paste your diagram description from the Page Source to a page on my own computer, everything works fine. (The Diagram script does strip leading spaces.)
Just delete that line, and retype it by hand, and it should work.