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Regular version of the site

International Youth Olympiad-2019 - Math demo in English

Video presentation of Math solutions in English

Dear Friends,


Join us for Math solutions in English


High school seniors, 11th grade in Russia, or final grade in your country. Problem set available via link.  






High school juniors, 10th grade in Russia, or pre final year in your country. Problem set for high school juniors

Please forward your questions to email address: obudjko@hse.ru