Ukraine cannot stop rapid russian advancements in Zaporizhzhia and Dnipro obalsts.
It is clear by now that Russian army will just bypass main fortifications in Zaporizhzhia from the east and Dnipro oblast opening gates to Zaporizhzhia and Dnipro cities.

Pokrovsk is irrelevant at this point as Ukraine relocated its best troops there while Russia just continues pushing from the south.