Education
He graduated in 2002 in economics from Warsaw University.
He graduated in 2002 in economics from Warsaw University.
In 2006 he was elected to the Warsaw City Council, but later gave up that seat to become the mayor of the Warsaw borough of Śródmieście.
He is a politician by profession, a right-wing member of Platforma Obywatelska. In the early 1990s he played chess as a member of the Warsaw Chess Club, but gave up competitive chess after founding OlimpBase, the world"s biggest database of team chess events.