I looked this up because it sounded so made up but apparently it's real
He arrived in Moscow in September 1935 and stayed “in the rooms which Napoleon had in 1812.” There he met with Sophia Janovskaya, professor of mathematical logic, who helped secure him offers to teach philosophy at Kazan or Moscow University. He was also shown around Leningrad, where his appeals to get manual work were rejected by party officials. It became apparent that outside of a teaching position, there would be no work for him.