Missing breed: Mezen
This one was kinda tricky, because it was mostly in russian. I can't russian, but google translate can. Also the breed is endangered, somehow.
Their bloodlines come from a variety of breeds brought to the area over the years including Estonian, Danish, Holstein, Meklenburg, Finnish as well as trotting breeds. The resulting crosses based on a need for a suitable working horse is how the Mezen breed emerged.
For many years after this breed was bred pure in relative isolation from other breeds, however there was an infusion of Ardennes blood at the end of the 20th century.
Breed - Mezen
Group - Draft (light draft, quite sporty)
Base - chesntut, black, bay
Modifiers - Pangare, Dun, flaxen (all rare)
White - no, only socks and blazes
Gray - yes
appaloosa - no
outcrosses - no
Any studbook/registry links?