Please see "Availability by country" on Super Mario Run's official website for a list of the countries in which it is available.
As of May 31, 2023, you can no longer choose Russia as your country when you create a new Nintendo Account or change your Country/Region in the account settings.
Additionally, you can no longer choose Russia as your country when you start the Super Mario Run game or change your Country/Region in the game settings.
However, please note that players whose Country/Region is currently set to Russia will still be able to play Super Mario Run.
We appreciate your understanding and cooperation on this matter.