Please be aware that government regulation requires the visa to enter Russia for almost all foreign visitors.
The application rules are different for different types of visas and also depend on country of residence of the applicant.
Please, also check that you and your accompanying persons' medical insurance is valid in Russia.
If you need an official visa support letter (an official invitation) from Organizing Committee, apply for it during submitting registration form of the page Registration.
While filling in the registration form and applying for visa, please, complete the following steps: