His accomplishments include gold (2000, 2002) and silver (2001) medals in the IOI, gold medals (2003, 2005) in the ACM ICPC World Finals as part of the team of Moscow State University and winning Google Code Jam (2006[1]), the Topcoder Open (2018, 2015, 2013, 2006[2]), the Topcoder Collegiate Challenge (2006,[3] 2007[4]), Facebook Hacker Cup (2011,[5] 2013, 2017) as well as numerous national and online contests.

He has achieved the highest rating ever among the Algorithm competitors of Topcoder[6] and consistently ranks in the top two of the world.

[9] At the age of 10, he started reading a lot of mathematical books and discovered that he had a special interest towards math.

His teacher, Julia Lvovna Vorontsova noticed his keen interest in programming and invited him to attend the Computer Science Olympiad of the Northwestern District of Moscow, where he took fourth place, which qualified him for the Moscow programming Olympiad.

He participated in six Russian National programming olympiads for high school students, and won three of them – in 2000, 2001 and 2002.