Welcome to the official website of the International Tournament of Young Mathematicians!

It is a team competition for high school students from all over the world. Each team should consist of 4 to 6 students, guided and accompanied by one or two adult team leaders.

Its purpose is to stimulate interest in mathematics and its applications, to develop scientific thinking, communication skills and teamwork.

The ITYM developed out of national tournaments in some countries, especially from Eastern Europe.

 The 12th ITYM is being co-organised, in particular, by  the Belarusian State Uni-versity and the French Association Animath.  It will be held online from October 28 to November 9, 2020.
In contrast to olympiads, the problems for the tournament are published several months in advance and contain parts with no known solution.

During the tournament the participating students present their results in a kind of research debate involving Reporter, Opponent, Reviewer and Observer.

The ITYM is supported by leading universities of Europe and has allowed collaboration between professional scientists and youngsters. Thousands of students, teachers and scientists from 17 countries have already benefited from the tournament.

 Because of the situation with Covid-19, the International Organising Committee  decided to make the 12th edition online in October-November 2020.  The problems were published on August 25 (updates of the list of problems are possible) Registration is open until September 25 The timetable is preliminary

#### 2018

Problems for the ITYM are suggested by contemporary mathematicians.

▹ Each problem contains parts with no known solution.

▹ Each problem is accessible to high school students, elementary research can be done.

▹ Some problems are advanced and require learning new theory.

▹ The original problems come from fields of algebra, analysis, combinatorics, geometry, number theory and probability.

▹ It is not compulsory to send solutions to all the problems. During the ITYM, every team will present at most three of them.

The official list of problems will be released in April 2020.
 Problems 2020 (September 2, v.2) 2019 2018 2017 2016 2015  2014 2013 2012 2011 2010  2009 Quiz 2019 2018 2017 2016 2015 2015 (solution) Authors 2009 - 2015
Quiz is a written test of 2.5 hours. Its aim is to check team’s understanding of the problems of the ITYM, competence in involved mathematical fields and solving skills.

During the rounds and the finals, the teams play the four following roles:

Reporter presents the main ideas and results obtained while solving the problem.

Opponent analyses the solution of the reporter and points to inaccuracy and errors in the paper and the presentation.

Reviewer evaluates both the performance of the reporter and the work of the opponent.

Observer only makes important remarks missed by all others.

 $\Large{\color{white}\mathrm{ITYM}=\frac{2\cdot\mathbb{R}\mathrm{ounds}+1\cdot\mathbb{Q}\mathrm{uiz}+\mathbb{F}\mathrm{inals}}{S_{p\mathrm{orts}}+e^{x\mathrm{cursion}}}}$

 Participate in the ITYM: ▹ Form a team of 4, 5 or 6 high school students ▹ Find one or two team leaders such as math teachers, undergraduate or graduate students, or scientists ▹ Register your team before September 25 ▹ Pay the participation fees ▹ Work on the problems ▹ Send your solutions four days before the tournament ▹ Attend the first draws online ▹ Come to the international tournament, follow the rules and enjoy

 AUG 25  PROBLEMS                       22:00* Publication of the list of                problems  SEP 25  REGISTRATION                22:00  Deadline for registration  OCT 13  PRELIMINARY WM         22:00  Deadline for preliminary               written materials  OCT 27  FINAL WM                         22:00  Deadline for final               written materials  OCT 28  DRAWS                              16:00  First draws  OCT 30  JURY & REVIEWS           17:00  Deadline for reviews 18:00  Jury meeting OCT 31  OPENING & ROUND 1    11:00  Opening ceremony 14:00  Round 1 NOV 1  DRAWS                                 14:00  Second draws  NOV 3  JURY & REVIEWS              17:00  Deadline for reviews 18:00   Jury meeting   NOV 4  ROUND 2                            14:00  Round 2      NOV 5  DRAWS                               14:00  Third draws  NOV 7  JURY & REVIEWS           17:00   Deadline for reviews 18:00   Jury meeting  NOV 8  FINALS & CLOSING        10:00  Finals 20:00  Closing ceremony* all hours correspond to time in Paris