Even with the rule that a piece can't return to a square it's just come from, it can just make an endless square, which is just a slightly longer version of the side-to-side repetition.
(hide) Play a game in real time with an online opponent! For this to be possible, you and your opponent have to select the action "Move and stay here" as default and then reload the page with the F5 key! (TeamBundy) (show all tips)