[ChuckElias]

This is one of Rut's blind spots, and it pops up every time this topic comes up. He likes to say that there is no such thing as a moving screen, and bases the claim on the fact the phrase "moving screen" doesn't appear verbatim in the rule book.

Nevertheless, the rule book tells us quite clearly that there are moving screens and that they can even be legal. 4-40-2c tells us that a screener must be stationary, "except when both are moving in the same path and the same direction". This clearly points out that the screener can move, in certain circumstances.

4-40-6 tells us that when a screener is moving in the same path and direction as his opponent, the opponent is responsible for the contact if the screener slows down or stops. So not only is it legal to move while screening, but in some cases, the player who is screened is responsible for any contact.

So yes, Virginia, there are moving screens. And next time the topic comes up, just pat Rut on the head and say, "It's a shame that 'moving screens' aren't defined in the book, isn't it?" You'll know better, but he'll feel better.