@bojkotiMalbona
Yes, its SysRq, which is often PrtScrn, not actually PrtScrn.

Its just Alt+SysRq and you can keep those held while you do #REISUB.

Leave a space of about one second between REISUB key presses to give the system a chance to complete each operation before #reBooting.

The #REISUO key set is same but turns system off at the end.

It seems everyone has a different way of remembering.