The beast had a teacher, we only had 5. 1985 year
Our chemistry teacher obliged the whole class to participate in the district Olympiad, and who won't - the pair. Nearly half-classes received pairs, the rest went to the city Olympiad. The same thing, but the tasks are more complicated. Then the Republican Olympiad, all-Union... As a result, three (3) students from our class went to the international chemistry Olympiad that year. One won, and the other two got their pairs.
A doctor of chemical sciences, by the way, from the whole class only one person became, which was then separated at the city level.