More than seventy years of events 1937 year cause the great number of questions. Why in the Soviet country, experiencing the period of all-round rapid development, did mass arrests and shooting begin suddenly? Why did repressions coincide with realization of first in soviet history of general, direct, equal and secret election? Who did want repressions and who most suffered from them? How did they succeed to be stopped? Was Stalin a reckless maniac? Who it was been are there his political opponents in party? How did Stalin overcome them? That was the main ideological weapon of Stalin? Which were achievements and shadow parties of Stalin revolution from above? Who were communists of 30th and many of them knew marxism-leninism? Who did stand after murder of Kirov? Why did Серго of Орджоникидзе finish life suicide? What changes in society were wanted by Stalin and why did many party leaders oppose to them? Whether Stalin did untie those repressions that now name "Stalin"?Reasons are exposed in a book, motive forces and sharp peripeteias of inner-party fight that was accompanied by the unprecedented amount of arrests and executing for all soviet history. This bloody and dramatic conflict abounded sharp collisions and unexpected turns. At the same time this fight did not come to an end stopping of repressions. In a book talked, as and why a true was not in time said about events 1937 year, as they became the mines of retarded-action, that pranged a soviet line-up and Soviet Union in final analysis."Solution 1937 year" dethrones myths about the events of 75-years-old remoteness, that until now cloud public consciousness and mix to know a historical true.