In early October 1937, Grigoriev returned from a trip to the Far East and Siberia, where he gave lectures and played.
Grigoriev was frail; he lost consciousness immediately after the use of force, and his throat began to constantly bleed.
[2] In the 1920 USSR Chess Championship (Moscow 4–24 October 1920) Grigoriev took 5-7th place (8 wins, 6 losses, and only one draw), despite undertaking extensive and difficult organizational duties including finding scare food rations for the participants.
His tournament victories included: the Third Chess Championship of the Trade Unions 1928 and he divided the 1-2nd places with Peter Romanovsky in the international Workers' Congress in Leningrad.
In 1935, the French magazine La Stratégie organized a tourney for endgame studies with two pawns against one, and Grigoriev ran away with ten of the twelve awards.
"[5] In Diagram 1, White wins as follows: Now Black can choose which of his three pawns he wishes to promote to a queen, but he loses no matter what.
The following two studies won prizes at the 1936 French journal contest: [5] Exceptionally precise and beautiful playing brings white victory.