Mathematical competitions used to be organized separately in the two Germanies prior to their unification in 1989. The main competition in East Germany was what is today called German National MO, established in 1962, while the main competition in West Germany was the so-called Federal Competition (Bundeswettbewerb Mathematik, formerly also known as West German MO), established in 1970. This fact lead to two separate competitions that are nowadays held in Germany, as both competitions were continued after 1989. The National MO is held in four rounds, the final one consisting of 6 problems in two days, divided into grades. The Federal Competition is held in three rounds, where the first two consist of four take-home problems each, while the third round is a kind of colloquium.
Germany at International Competitions
Germany participates at the IMO since 1991, whereas East Germany and West Germany had participated since 1959 and 1977, respectively. In the recent history, the best performance of a German team on an IMO was the 10-th place in 1996 and 2002. A number of students is invited to a training program based on two preliminary selection exams, and the IMO team is selected from these students through several tests during the training program.