Here is the qualifying (remote) round of the competition. You can solve problems until November 12, 2019 inclusively.
Please remember that your solution of every problem should include not only the right answer but the full reasoning as well.
We will be happy if your friends who like mathematics also participate. However, every assignment should be done individually; otherwise, your submission will not be considered.
You can write your solutions by hand and scan them or type them using a text editor. Solutions should be written in English, Esperanto, French, Georgian, German, Kazakh, Persian, Romanian, Russian, Spanish, Thai, Turkish, Ukrainian or Uzbek. Use of other languages should be agreed with the organizers in advance.
You do not need to repeat the text of the problems in your paper; please write down your solutions only. For anonymous grading, you should not write your name on the paper sheets with solutions.
The winners of Olympiad 2018/19 (those with Diplomas I‑III) can participate directly in the final round.
How to submit solutions
The solutions should be submitted to the Jury by November 12 using this online form:
You can upload both text files (in TXT, DOC, DOCX or PDF formats) and scans of paper works (in JPG and PNG formats). The total number of files should not exceed 10. The files with the solutions of the problems should not contain the surname, name and other personal data of the participant!
Nota Bene! It is not allowed to use the same registration data for sending works of several participants. If you are a teacher and want to send papers of several students, please write about this to the organizing Committee, and we will offer a convenient way to do it.
You can send your questions (but not the solutions of problems) to the organizers to email@example.com.