In July–August 1914, he played in Mannheim (19th DSB Congress), and tied for 6-10th in interrupted tournament (Hauptturnier A).
[2] After the declaration of war against Russia, eleven “Russian players” (Alekhine, Bogoljubow, Bogatyrchuk, Flamberg, Koppelman, Maliutin, Rabinovich, Romanovsky, Saburov, Selezniev, Weinstein) from the Mannheim tournament were interned by Germany.
In September 1914, four of them (Alekhine, Bogatyrchuk, Saburov, and Koppelman) were freed and allowed to return home through Switzerland.
The Russian internees played eight tournaments, the first in Baden-Baden (1914) and all the others in Triberg im Schwarzwald (1914–1917).
That year, both players were sent invitations to participate in the third USSR Championship, and somehow Nikolai Krylenko convinced them to play and stay in the Soviet Union.
Selezniev participated in the third, fourth, fifth and sixth USSR Championships (1924, 1925, 1927, and 1929), but had only mediocre results each time.