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This is not the official site for the International Mathematical Olympiad. The official site is

This site contains information, problems, and preparation materials for math olympiads, and in particular IMO. It started out as a project to collect IMO shortlists and longlists. We did that, wrote a book The IMO Compendium, and then developed the site with other useful resources.

You can now find preparation materials, practice tests, and variety of ``homework’’ assignments.

The problems here may appear difficult and unusual for those who are new in problem solving. Don’t get discouraged - it takes a lot of time and practice to get to the level of IMO. We hope to soon include introductory problems and topics, to properly introduce everyone in math problem solving.

This topic in the the forum is open to your questions, bug reports, and suggestions for improvement.

Posted on: 02/03/2012 at 23:02:10     Posted by maticivan

Where can I send you our National Olympiad’s Question Paper? Its in pdf version
exactly as you want.

Posted on: 06/05/2012 at 07:06:03     Posted by Dladem

Hi - Thanks for offering the olympiad paper. You can email it to me at matic"at"math"dot"duke"dot"edu or imomath"at"gmail"dot"com.

Posted on: 06/05/2012 at 10:06:11     Posted by maticivan

This site is f*cking amazing, i am sorry for swearing but it is really amazing, thank you very much for the great work, and keep it up ^^

P.s. suggestion: add a "donate" button, i think there are people who can and would donate in improvement of this website.

Posted on: 07/20/2012 at 15:07:40     Posted by markomak

Can we get pdf versions of the training materials as we used to enjoy previously? As, it is not possible every to be online to read them, and the pdfs were much better(according to me).

I have all of the pdfs of IMOMath (except the Combinatorics one)and they have been a great help for me till now.
Thanking you

Posted on: 08/16/2012 at 01:08:31     Posted by Dladem

Hi Dladem,

We are now working on improving the grammar and exposition in those old texts. The difficulty with pdfs is that they cannot be easily edited by other users. Our idea is to allow the users of this site to edit the texts as they find mistakes or better ways to explain math.

You are right that pdfs are convenient because they allow for printing and offline usage. We will create pdf files once the texts get improved.

We have received several requests for these old files. However, if we keep them on the site, the search engines are indexing these files (which are no longer maintained) rather than the up-to-date texts of the new project. In order to resolve this issue, we have placed the old pdfs in the members only section of the website. If you are logged in, you are able to access the files, but please do not link to them.

Posted on: 08/22/2012 at 13:08:09     Posted by maticivan

Thank you sir for your help.

Posted on: 08/27/2012 at 08:08:13     Posted by Dladem

Dear Sir,
I am logged in but cannot see them.

Posted on: 12/26/2012 at 21:12:56     Posted by IDMasterz

@IDMasterz: Sorry for the mistake. It is now corrected.

Posted on: 01/01/2013 at 21:01:23     Posted by maticivan

I am from Roumania and i want to prepare very well for the international mathematical olympiad.This year i cannot because i don‘t qualified at the next dams but i want to prepare very well.Can anybody tell me some advice for a good prepare?
Thank you,

Posted on: 05/08/2016 at 15:05:50     Posted by DanDumitrescu


Posted on: 05/02/2020 at 07:05:05     Posted by anarchy123

Can you make the training notes into pdf‘s? It would be much appreciated and easier...

Posted on: 06/08/2020 at 10:06:09     Posted by supernova69

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