About nim-chess. In gtk3.nim and gdk3.nim libgtk-win32-3.0-0.dll libgdk-win32-3.0-0.dll
to replace libgtk-3-0.dll libgdk-3-0.dll and additionally execute ln -s ~/ngtk3/nim-cairo/src/cairo_pragma.nim and then chess works.
About nim-chess. In gtk3.nim and gdk3.nim libgtk-win32-3.0-0.dll libgdk-win32-3.0-0.dll
to replace libgtk-3-0.dll libgdk-3-0.dll and additionally execute ln -s ~/ngtk3/nim-cairo/src/cairo_pragma.nim and then chess works.