A Perfect Move

Today I helped our son M and his fiance C with their move.
They both had prepared their move perfectly. Everything was packed into boxes with notes on it where is had to go in the new appartement.
They even had two professionell helpers for the heavy pieces.
It was a perfect move :-D
When I searched for a blip for a perfect move, I stumbled over a chess for three. It was ages ago when we tried to play it. I only remember that it was very complicated...