you may refer to the below youtube for the experienced programmer to attempt the session
and he would also encounter so many unintended mistakes and nothing could work without reading the solutions, spoilers, also untold requests which you would have to do to clear the test.
if you are encountering problem, stop doing it. read the comment section. and maybe just watch the video and then consider it as done
and glitch too, thats horribly broken! unresponsive!