[NicoZ]

Bezüglich Bewegen der Spielfläche scheint mir ein Hinweis auf eine neue Stelle im HMO angebracht, auch wenn das den Spaß für manche Überlegungen zu Bewegungen verdirbt :

[...]12.1.2 For instance, the ball may be returned by a player, well wide of the table, so that it is clear that it will not touch the opponent*s court; but the rally does not end until the ball goes out of play and either player may still win the point. If, in these circumstances, the opponent moves the playing surface while the ball is in play, it is the player who struck the wide return who wins the point, even though the return was unlikely to be good. The rule regarding moving the playing surface is more than 50 years old, and comes from a time where we had no rollaway tables; nowadays tables have hinges and a light push or even stamping on the floor can move the playing surface. Because of this, most umpires do not apply the rule strictly and it would be impossible to play wheelchair table tennis if *moving the playing surface* was enforced. Only lifting, permanent shifting or displacement, or intentional shaking the tabletop should result in the awarding of a point.

Quelle: https://ittf.cdnomega.com/eu/2019/08...th-Edition.pdf , Handbook for Match officials 16th edition, Stand Juli 2019, Seite 16, 12.1.2 (fett im Original als Änderung gemarkert)