In the following year Emanuel Lasker's patron, Krylenko, was purged by Stalin. Lasker tried to support himself by giving chess and bridge lectures and exhibitions, as he was now too old for serious competition. In 1940 he published his last book, "The community of the future", in which he proposed solutions for serious political problems, including anti-Semitism and unemployment. Lasker died of a kidney infection in New York on 11 January 1941, at the age of 72.