What if the Kronshtadt-class battlecruisers were ready in 1940?

How would completed Kronshtadt-class battlecruisers have affected the war if they were ready by 1940?

Their value would have varied sharply by fleet: limited in the mined-in Baltic, potentially significant in the Black Sea and Arctic, and uncertain in the Pacific.

Geography and command culture would have mattered more than simply adding large hulls to the Soviet inventory. A Baltic ship might still have been trapped with the rest of the fleet, while a Black Sea unit would have complicated Axis operations and a Northern Fleet unit could have influenced convoy and surface-warship calculations. A Pacific unit might have been recalled north before it could affect the war against Japan.