Focuses on the late 16th to 18th centuries. Completed answers are available at Uchebniki-Rabochaya-Tetrad and Poistorii.ru .
Covers the 19th-century history of Russia, often split into two parts. Comprehensive solutions can be found on Gitem.me and Euroki.org . gdz po rabochei tetradi istoriia rossii danilova, kosulina
For the most complete "posts" or digital versions of these answers, the following sites are the most reliable for this specific series: Focuses on the late 16th to 18th centuries