<chIp>
Okay, so I have to partially retract/revise what I wrote above: moving
a piece in chess may be a {tonSaw'} by itself in some contexts, or it
may not; or it may be part of a more complicated {tonSaw'} consisting
of several smaller atomic moves, spread over several turns.
The plurality is indicated by the prefix {DI-} here. Is there
something unusual about this? (I don't understand why you drew
specific attention to the lack of plural suffix.)
I would say it's stronger than "most likely". I think if you're doing
something to one thing out of five, and not to the other four, {ngIq}
Dalo'be'nIS. :-)