The chess games served as a cover for the meetings of the underground group in Iasi that Lupu (Ze'ev) Credinciosu was a member of. While playing, they discussed political questions related to their anti-fascist beliefs.
"They would play chess, Father would hold me on his lap and they would talk politics… the government was fascist… it was forbidden to band together, certainly on the left… Jews were in any case suspected of being sympathetic to the Soviet Union…"
(From the testimony of Lupu's daughter, Mona Credinciosu)